diff --git a/Microsoft.DotNet.Cli.sln b/Microsoft.DotNet.Cli.sln
index 3733528eb..271579431 100644
--- a/Microsoft.DotNet.Cli.sln
+++ b/Microsoft.DotNet.Cli.sln
@@ -147,8 +147,6 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Microsoft.DotNet.TestFramew
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "redist", "src\redist\redist.csproj", "{098D9321-1201-4974-A75E-F58EBCD98ACF}"
 EndProject
-Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "tool_roslyn", "src\tool_roslyn\tool_roslyn.csproj", "{A0670C63-BA7A-4C1B-B9A7-1CA26A7F235C}"
-EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "tool_msbuild", "src\tool_msbuild\tool_msbuild.csproj", "{D82A3246-9831-4024-A9B2-1932EEF3D56F}"
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "tool_nuget", "src\tool_nuget\tool_nuget.csproj", "{BE4C655A-DC54-4408-B739-743456D34111}"
@@ -705,30 +703,6 @@ Global
 		{098D9321-1201-4974-A75E-F58EBCD98ACF}.RelWithDebInfo|x64.Build.0 = Release|Any CPU
 		{098D9321-1201-4974-A75E-F58EBCD98ACF}.RelWithDebInfo|x86.ActiveCfg = Release|Any CPU
 		{098D9321-1201-4974-A75E-F58EBCD98ACF}.RelWithDebInfo|x86.Build.0 = Release|Any CPU
-		{A0670C63-BA7A-4C1B-B9A7-1CA26A7F235C}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{A0670C63-BA7A-4C1B-B9A7-1CA26A7F235C}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{A0670C63-BA7A-4C1B-B9A7-1CA26A7F235C}.Debug|x64.ActiveCfg = Release|Any CPU
-		{A0670C63-BA7A-4C1B-B9A7-1CA26A7F235C}.Debug|x64.Build.0 = Release|Any CPU
-		{A0670C63-BA7A-4C1B-B9A7-1CA26A7F235C}.Debug|x86.ActiveCfg = Release|Any CPU
-		{A0670C63-BA7A-4C1B-B9A7-1CA26A7F235C}.Debug|x86.Build.0 = Release|Any CPU
-		{A0670C63-BA7A-4C1B-B9A7-1CA26A7F235C}.MinSizeRel|Any CPU.ActiveCfg = Release|Any CPU
-		{A0670C63-BA7A-4C1B-B9A7-1CA26A7F235C}.MinSizeRel|Any CPU.Build.0 = Release|Any CPU
-		{A0670C63-BA7A-4C1B-B9A7-1CA26A7F235C}.MinSizeRel|x64.ActiveCfg = Release|Any CPU
-		{A0670C63-BA7A-4C1B-B9A7-1CA26A7F235C}.MinSizeRel|x64.Build.0 = Release|Any CPU
-		{A0670C63-BA7A-4C1B-B9A7-1CA26A7F235C}.MinSizeRel|x86.ActiveCfg = Release|Any CPU
-		{A0670C63-BA7A-4C1B-B9A7-1CA26A7F235C}.MinSizeRel|x86.Build.0 = Release|Any CPU
-		{A0670C63-BA7A-4C1B-B9A7-1CA26A7F235C}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{A0670C63-BA7A-4C1B-B9A7-1CA26A7F235C}.Release|Any CPU.Build.0 = Release|Any CPU
-		{A0670C63-BA7A-4C1B-B9A7-1CA26A7F235C}.Release|x64.ActiveCfg = Release|Any CPU
-		{A0670C63-BA7A-4C1B-B9A7-1CA26A7F235C}.Release|x64.Build.0 = Release|Any CPU
-		{A0670C63-BA7A-4C1B-B9A7-1CA26A7F235C}.Release|x86.ActiveCfg = Release|Any CPU
-		{A0670C63-BA7A-4C1B-B9A7-1CA26A7F235C}.Release|x86.Build.0 = Release|Any CPU
-		{A0670C63-BA7A-4C1B-B9A7-1CA26A7F235C}.RelWithDebInfo|Any CPU.ActiveCfg = Release|Any CPU
-		{A0670C63-BA7A-4C1B-B9A7-1CA26A7F235C}.RelWithDebInfo|Any CPU.Build.0 = Release|Any CPU
-		{A0670C63-BA7A-4C1B-B9A7-1CA26A7F235C}.RelWithDebInfo|x64.ActiveCfg = Release|Any CPU
-		{A0670C63-BA7A-4C1B-B9A7-1CA26A7F235C}.RelWithDebInfo|x64.Build.0 = Release|Any CPU
-		{A0670C63-BA7A-4C1B-B9A7-1CA26A7F235C}.RelWithDebInfo|x86.ActiveCfg = Release|Any CPU
-		{A0670C63-BA7A-4C1B-B9A7-1CA26A7F235C}.RelWithDebInfo|x86.Build.0 = Release|Any CPU
 		{D82A3246-9831-4024-A9B2-1932EEF3D56F}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{D82A3246-9831-4024-A9B2-1932EEF3D56F}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{D82A3246-9831-4024-A9B2-1932EEF3D56F}.Debug|x64.ActiveCfg = Release|Any CPU
@@ -1625,7 +1599,6 @@ Global
 		{570950AD-A080-4F32-980C-F50E312910DF} = {ED2FE3E2-F7E7-4389-8231-B65123F2076F}
 		{6592A22C-2386-4E83-A4D3-FC08075C723A} = {ED2FE3E2-F7E7-4389-8231-B65123F2076F}
 		{098D9321-1201-4974-A75E-F58EBCD98ACF} = {ED2FE3E2-F7E7-4389-8231-B65123F2076F}
-		{A0670C63-BA7A-4C1B-B9A7-1CA26A7F235C} = {ED2FE3E2-F7E7-4389-8231-B65123F2076F}
 		{D82A3246-9831-4024-A9B2-1932EEF3D56F} = {ED2FE3E2-F7E7-4389-8231-B65123F2076F}
 		{BE4C655A-DC54-4408-B739-743456D34111} = {ED2FE3E2-F7E7-4389-8231-B65123F2076F}
 		{2DFCC95F-75F7-46E1-8F56-256DB4CA98B2} = {0722D325-24C8-4E83-B5AF-0A083E7F0749}
diff --git a/TestAssets/TestProjects/MSBuildIntegration/build.proj b/TestAssets/TestProjects/MSBuildIntegration/build.proj
index 203f96df3..8b2a7851e 100644
--- a/TestAssets/TestProjects/MSBuildIntegration/build.proj
+++ b/TestAssets/TestProjects/MSBuildIntegration/build.proj
@@ -29,9 +29,6 @@
     <Error Condition=" '$(MSBuildExtensionsPath)' == '' " 
            Text="Expected MSBuildExtensionsPath to be set, but it is not." />
     
-    <Error Condition=" '$(CscToolExe)' == '' " 
-           Text="Expected CscToolExe to be set, but it is not." />
-
     <Error Condition=" '$(MSBuildSDKsPath)' == '' " 
            Text="Expected MSBuildSDKsPath to be set, but it is not." />
 
diff --git a/build/DependencyVersions.props b/build/DependencyVersions.props
index 3c43151c8..ab6b45f75 100644
--- a/build/DependencyVersions.props
+++ b/build/DependencyVersions.props
@@ -1,12 +1,12 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project ToolsVersion="14.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup>
-    <CLI_SharedFrameworkVersion>2.0.1</CLI_SharedFrameworkVersion>
-    <CLI_MSBuild_Version>15.4.7</CLI_MSBuild_Version>
-    <CLI_Roslyn_Version>2.3.2-beta1-61921-05</CLI_Roslyn_Version>
+    <CLI_SharedFrameworkVersion>2.0.0</CLI_SharedFrameworkVersion>
+    <CLI_MSBuild_Version>15.5.0-preview-000113-1032064</CLI_MSBuild_Version>
+    <CLI_Roslyn_Version>2.6.0-beta1-62126-01</CLI_Roslyn_Version>
     <CLI_Roslyn_Satellites_Version>2.3.0-pre-20170727-1</CLI_Roslyn_Satellites_Version>
     <CLI_DiaSymNative_Version>1.6.0-beta2-25304</CLI_DiaSymNative_Version>
-    <CLI_FSharp_Version>4.2.0-rc-170630-0</CLI_FSharp_Version>
+    <CLI_FSharp_Version>4.2.0-rtm-170926-0</CLI_FSharp_Version>
     <CLI_FSharp_Satellites_Version>4.4.1-pre-20170727-1</CLI_FSharp_Satellites_Version>
 
     <!-- We'll usually want to keep these versions in sync, but we may want to diverge in some
diff --git a/build_projects/Microsoft.DotNet.Cli.Build.SelfTest/InvokeWithStage2.proj b/build_projects/Microsoft.DotNet.Cli.Build.SelfTest/InvokeWithStage2.proj
index 1493128e7..cb833d480 100644
--- a/build_projects/Microsoft.DotNet.Cli.Build.SelfTest/InvokeWithStage2.proj
+++ b/build_projects/Microsoft.DotNet.Cli.Build.SelfTest/InvokeWithStage2.proj
@@ -7,8 +7,6 @@
     <PropertyGroup>
         <MSBuildExtensionsPathInToolPath>false</MSBuildExtensionsPathInToolPath>
         <MSBuildExtensionsPathInToolPath Condition="$(MSBuildExtensionsPath.StartsWith('$(NormalizedToolPath)'))">true</MSBuildExtensionsPathInToolPath>
-        <CscToolExeInToolPath>false</CscToolExeInToolPath>
-        <CscToolExeInToolPath Condition="$(CscToolExe.StartsWith('$(NormalizedToolPath)'))">true</CscToolExeInToolPath>
         <MSBuildSDKsPathInToolPath>false</MSBuildSDKsPathInToolPath>
         <MSBuildSDKsPathInToolPath Condition="$(MSBuildSDKsPath.StartsWith('$(NormalizedToolPath)'))">true</MSBuildSDKsPathInToolPath>
     </PropertyGroup>
diff --git a/src/Microsoft.DotNet.Cli.Utils/MSBuildForwardingAppWithoutLogging.cs b/src/Microsoft.DotNet.Cli.Utils/MSBuildForwardingAppWithoutLogging.cs
index 500ab7b30..39c7fb2df 100644
--- a/src/Microsoft.DotNet.Cli.Utils/MSBuildForwardingAppWithoutLogging.cs
+++ b/src/Microsoft.DotNet.Cli.Utils/MSBuildForwardingAppWithoutLogging.cs
@@ -23,9 +23,8 @@ namespace Microsoft.DotNet.Cli.Utils
             new Dictionary<string, string>
             {
                 { "MSBuildExtensionsPath", AppContext.BaseDirectory },
-                { "CscToolExe", GetRunCscPath() },
-                { "VbcToolExe", GetRunVbcPath() },
-                { "MSBuildSDKsPath", GetMSBuildSDKsPath() }
+                { "MSBuildSDKsPath", GetMSBuildSDKsPath() },
+                { "DOTNET_HOST_PATH", GetDotnetPath() },
             };
 
         private readonly IEnumerable<string> _msbuildRequiredParameters =
@@ -78,20 +77,9 @@ namespace Microsoft.DotNet.Cli.Utils
                 SdksDirectoryName);
         }
 
-        private static string GetRunVbcPath()
+        private static string GetDotnetPath()
         {
-            return GetRunToolPath("Vbc");
-        }        
-
-        private static string GetRunCscPath()
-        {
-            return GetRunToolPath("Csc");
-        }
-
-        private static string GetRunToolPath(string compilerName)
-        {
-            var scriptExtension = RuntimeInformation.IsOSPlatform(OSPlatform.Windows) ? ".cmd" : ".sh";
-            return Path.Combine(AppContext.BaseDirectory, "Roslyn", $"Run{compilerName}{scriptExtension}");
+            return new Muxer().MuxerPath;
         }
     }
 }
diff --git a/src/dotnet/commands/dotnet-run/LocalizableStrings.resx b/src/dotnet/commands/dotnet-run/LocalizableStrings.resx
index 8cab1941e..a939d42a8 100644
--- a/src/dotnet/commands/dotnet-run/LocalizableStrings.resx
+++ b/src/dotnet/commands/dotnet-run/LocalizableStrings.resx
@@ -177,7 +177,7 @@ The current {1} is '{2}'.</value>
     <value>Using launch settings from {0}...</value>
   </data>
   <data name="LaunchProfileIsNotAJsonObject" xml:space="preserve">
-    <value>Launch profile is not a JSON object.</value>
+    <value>A profile with the specified name could not be found or is not a valid JSON object.</value>
   </data>
   <data name="LaunchProfileHandlerCannotBeLocated" xml:space="preserve">
     <value>The launch profile type '{0}' is not supported.</value>
diff --git a/src/dotnet/commands/dotnet-run/xlf/LocalizableStrings.cs.xlf b/src/dotnet/commands/dotnet-run/xlf/LocalizableStrings.cs.xlf
index 60ce2ef7b..8ea09aff9 100644
--- a/src/dotnet/commands/dotnet-run/xlf/LocalizableStrings.cs.xlf
+++ b/src/dotnet/commands/dotnet-run/xlf/LocalizableStrings.cs.xlf
@@ -103,8 +103,8 @@ Aktuální {1} je {2}.</target>
         <note />
       </trans-unit>
       <trans-unit id="LaunchProfileIsNotAJsonObject">
-        <source>Launch profile is not a JSON object.</source>
-        <target state="translated">Profil spuštění není objektem JSON.</target>
+        <source>A profile with the specified name could not be found or is not a valid JSON object.</source>
+        <target state="needs-review-translation">Profil spuštění není objektem JSON.</target>
         <note />
       </trans-unit>
       <trans-unit id="LaunchProfileHandlerCannotBeLocated">
diff --git a/src/dotnet/commands/dotnet-run/xlf/LocalizableStrings.de.xlf b/src/dotnet/commands/dotnet-run/xlf/LocalizableStrings.de.xlf
index 2349aafdc..c4888a85d 100644
--- a/src/dotnet/commands/dotnet-run/xlf/LocalizableStrings.de.xlf
+++ b/src/dotnet/commands/dotnet-run/xlf/LocalizableStrings.de.xlf
@@ -103,8 +103,8 @@ Ein ausführbares Projekt sollte ein ausführbares TFM (z.B. netcoreapp2.0) verw
         <note />
       </trans-unit>
       <trans-unit id="LaunchProfileIsNotAJsonObject">
-        <source>Launch profile is not a JSON object.</source>
-        <target state="translated">Das Startprofil ist kein JSON-Objekt.</target>
+        <source>A profile with the specified name could not be found or is not a valid JSON object.</source>
+        <target state="needs-review-translation">Das Startprofil ist kein JSON-Objekt.</target>
         <note />
       </trans-unit>
       <trans-unit id="LaunchProfileHandlerCannotBeLocated">
diff --git a/src/dotnet/commands/dotnet-run/xlf/LocalizableStrings.es.xlf b/src/dotnet/commands/dotnet-run/xlf/LocalizableStrings.es.xlf
index 4c05cc144..f22075f6b 100644
--- a/src/dotnet/commands/dotnet-run/xlf/LocalizableStrings.es.xlf
+++ b/src/dotnet/commands/dotnet-run/xlf/LocalizableStrings.es.xlf
@@ -103,8 +103,8 @@ El actual {1} es "{2}".</target>
         <note />
       </trans-unit>
       <trans-unit id="LaunchProfileIsNotAJsonObject">
-        <source>Launch profile is not a JSON object.</source>
-        <target state="translated">El perfil de inicio no es un objeto JSON.</target>
+        <source>A profile with the specified name could not be found or is not a valid JSON object.</source>
+        <target state="needs-review-translation">El perfil de inicio no es un objeto JSON.</target>
         <note />
       </trans-unit>
       <trans-unit id="LaunchProfileHandlerCannotBeLocated">
diff --git a/src/dotnet/commands/dotnet-run/xlf/LocalizableStrings.fr.xlf b/src/dotnet/commands/dotnet-run/xlf/LocalizableStrings.fr.xlf
index f62af586a..cb25dab6b 100644
--- a/src/dotnet/commands/dotnet-run/xlf/LocalizableStrings.fr.xlf
+++ b/src/dotnet/commands/dotnet-run/xlf/LocalizableStrings.fr.xlf
@@ -103,8 +103,8 @@ Le {1} actuel est '{2}'.</target>
         <note />
       </trans-unit>
       <trans-unit id="LaunchProfileIsNotAJsonObject">
-        <source>Launch profile is not a JSON object.</source>
-        <target state="translated">Le profil de lancement n'est pas un objet JSON.</target>
+        <source>A profile with the specified name could not be found or is not a valid JSON object.</source>
+        <target state="needs-review-translation">Le profil de lancement n'est pas un objet JSON.</target>
         <note />
       </trans-unit>
       <trans-unit id="LaunchProfileHandlerCannotBeLocated">
diff --git a/src/dotnet/commands/dotnet-run/xlf/LocalizableStrings.it.xlf b/src/dotnet/commands/dotnet-run/xlf/LocalizableStrings.it.xlf
index ba7512823..13ca40c66 100644
--- a/src/dotnet/commands/dotnet-run/xlf/LocalizableStrings.it.xlf
+++ b/src/dotnet/commands/dotnet-run/xlf/LocalizableStrings.it.xlf
@@ -103,8 +103,8 @@ Il valore corrente di {1} è '{2}'.</target>
         <note />
       </trans-unit>
       <trans-unit id="LaunchProfileIsNotAJsonObject">
-        <source>Launch profile is not a JSON object.</source>
-        <target state="translated">Il profilo di avvio non è un oggetto JSON.</target>
+        <source>A profile with the specified name could not be found or is not a valid JSON object.</source>
+        <target state="needs-review-translation">Il profilo di avvio non è un oggetto JSON.</target>
         <note />
       </trans-unit>
       <trans-unit id="LaunchProfileHandlerCannotBeLocated">
diff --git a/src/dotnet/commands/dotnet-run/xlf/LocalizableStrings.ja.xlf b/src/dotnet/commands/dotnet-run/xlf/LocalizableStrings.ja.xlf
index fa08955ee..8f52f732c 100644
--- a/src/dotnet/commands/dotnet-run/xlf/LocalizableStrings.ja.xlf
+++ b/src/dotnet/commands/dotnet-run/xlf/LocalizableStrings.ja.xlf
@@ -103,8 +103,8 @@ The current {1} is '{2}'.</source>
         <note />
       </trans-unit>
       <trans-unit id="LaunchProfileIsNotAJsonObject">
-        <source>Launch profile is not a JSON object.</source>
-        <target state="translated">起動プロファイルが JSON オブジェクトではありません。</target>
+        <source>A profile with the specified name could not be found or is not a valid JSON object.</source>
+        <target state="needs-review-translation">起動プロファイルが JSON オブジェクトではありません。</target>
         <note />
       </trans-unit>
       <trans-unit id="LaunchProfileHandlerCannotBeLocated">
diff --git a/src/dotnet/commands/dotnet-run/xlf/LocalizableStrings.ko.xlf b/src/dotnet/commands/dotnet-run/xlf/LocalizableStrings.ko.xlf
index 41a2ec94e..86ff5d88f 100644
--- a/src/dotnet/commands/dotnet-run/xlf/LocalizableStrings.ko.xlf
+++ b/src/dotnet/commands/dotnet-run/xlf/LocalizableStrings.ko.xlf
@@ -103,8 +103,8 @@ The current {1} is '{2}'.</source>
         <note />
       </trans-unit>
       <trans-unit id="LaunchProfileIsNotAJsonObject">
-        <source>Launch profile is not a JSON object.</source>
-        <target state="translated">시작 프로필이 JSON 개체가 아닙니다.</target>
+        <source>A profile with the specified name could not be found or is not a valid JSON object.</source>
+        <target state="needs-review-translation">시작 프로필이 JSON 개체가 아닙니다.</target>
         <note />
       </trans-unit>
       <trans-unit id="LaunchProfileHandlerCannotBeLocated">
diff --git a/src/dotnet/commands/dotnet-run/xlf/LocalizableStrings.pl.xlf b/src/dotnet/commands/dotnet-run/xlf/LocalizableStrings.pl.xlf
index aab3a4913..b07a84d33 100644
--- a/src/dotnet/commands/dotnet-run/xlf/LocalizableStrings.pl.xlf
+++ b/src/dotnet/commands/dotnet-run/xlf/LocalizableStrings.pl.xlf
@@ -103,8 +103,8 @@ Bieżący element {1}: „{2}”.</target>
         <note />
       </trans-unit>
       <trans-unit id="LaunchProfileIsNotAJsonObject">
-        <source>Launch profile is not a JSON object.</source>
-        <target state="translated">Profil uruchamiania nie jest obiektem JSON.</target>
+        <source>A profile with the specified name could not be found or is not a valid JSON object.</source>
+        <target state="needs-review-translation">Profil uruchamiania nie jest obiektem JSON.</target>
         <note />
       </trans-unit>
       <trans-unit id="LaunchProfileHandlerCannotBeLocated">
diff --git a/src/dotnet/commands/dotnet-run/xlf/LocalizableStrings.pt-BR.xlf b/src/dotnet/commands/dotnet-run/xlf/LocalizableStrings.pt-BR.xlf
index 2843c82ef..1e19ebcf8 100644
--- a/src/dotnet/commands/dotnet-run/xlf/LocalizableStrings.pt-BR.xlf
+++ b/src/dotnet/commands/dotnet-run/xlf/LocalizableStrings.pt-BR.xlf
@@ -103,8 +103,8 @@ O {1} atual é '{2}'.</target>
         <note />
       </trans-unit>
       <trans-unit id="LaunchProfileIsNotAJsonObject">
-        <source>Launch profile is not a JSON object.</source>
-        <target state="translated">O perfil de inicialização não é um objeto JSON.</target>
+        <source>A profile with the specified name could not be found or is not a valid JSON object.</source>
+        <target state="needs-review-translation">O perfil de inicialização não é um objeto JSON.</target>
         <note />
       </trans-unit>
       <trans-unit id="LaunchProfileHandlerCannotBeLocated">
diff --git a/src/dotnet/commands/dotnet-run/xlf/LocalizableStrings.ru.xlf b/src/dotnet/commands/dotnet-run/xlf/LocalizableStrings.ru.xlf
index 95b1e0400..cf00bd460 100644
--- a/src/dotnet/commands/dotnet-run/xlf/LocalizableStrings.ru.xlf
+++ b/src/dotnet/commands/dotnet-run/xlf/LocalizableStrings.ru.xlf
@@ -103,8 +103,8 @@ The current {1} is '{2}'.</source>
         <note />
       </trans-unit>
       <trans-unit id="LaunchProfileIsNotAJsonObject">
-        <source>Launch profile is not a JSON object.</source>
-        <target state="translated">Профиль запуска не является объектом JSON.</target>
+        <source>A profile with the specified name could not be found or is not a valid JSON object.</source>
+        <target state="needs-review-translation">Профиль запуска не является объектом JSON.</target>
         <note />
       </trans-unit>
       <trans-unit id="LaunchProfileHandlerCannotBeLocated">
diff --git a/src/dotnet/commands/dotnet-run/xlf/LocalizableStrings.tr.xlf b/src/dotnet/commands/dotnet-run/xlf/LocalizableStrings.tr.xlf
index a3a9211fb..9a21b7da4 100644
--- a/src/dotnet/commands/dotnet-run/xlf/LocalizableStrings.tr.xlf
+++ b/src/dotnet/commands/dotnet-run/xlf/LocalizableStrings.tr.xlf
@@ -103,8 +103,8 @@ Geçerli {1}: '{2}'.</target>
         <note />
       </trans-unit>
       <trans-unit id="LaunchProfileIsNotAJsonObject">
-        <source>Launch profile is not a JSON object.</source>
-        <target state="translated">Başlatma profili bir JSON nesnesi değil.</target>
+        <source>A profile with the specified name could not be found or is not a valid JSON object.</source>
+        <target state="needs-review-translation">Başlatma profili bir JSON nesnesi değil.</target>
         <note />
       </trans-unit>
       <trans-unit id="LaunchProfileHandlerCannotBeLocated">
diff --git a/src/dotnet/commands/dotnet-run/xlf/LocalizableStrings.zh-Hans.xlf b/src/dotnet/commands/dotnet-run/xlf/LocalizableStrings.zh-Hans.xlf
index a4b5c43c2..4ac5ce35e 100644
--- a/src/dotnet/commands/dotnet-run/xlf/LocalizableStrings.zh-Hans.xlf
+++ b/src/dotnet/commands/dotnet-run/xlf/LocalizableStrings.zh-Hans.xlf
@@ -103,8 +103,8 @@ The current {1} is '{2}'.</source>
         <note />
       </trans-unit>
       <trans-unit id="LaunchProfileIsNotAJsonObject">
-        <source>Launch profile is not a JSON object.</source>
-        <target state="translated">启动配置文件不是 JSON 对象。</target>
+        <source>A profile with the specified name could not be found or is not a valid JSON object.</source>
+        <target state="needs-review-translation">启动配置文件不是 JSON 对象。</target>
         <note />
       </trans-unit>
       <trans-unit id="LaunchProfileHandlerCannotBeLocated">
diff --git a/src/dotnet/commands/dotnet-run/xlf/LocalizableStrings.zh-Hant.xlf b/src/dotnet/commands/dotnet-run/xlf/LocalizableStrings.zh-Hant.xlf
index b9bd6e9c3..05567e529 100644
--- a/src/dotnet/commands/dotnet-run/xlf/LocalizableStrings.zh-Hant.xlf
+++ b/src/dotnet/commands/dotnet-run/xlf/LocalizableStrings.zh-Hant.xlf
@@ -103,8 +103,8 @@ The current {1} is '{2}'.</source>
         <note />
       </trans-unit>
       <trans-unit id="LaunchProfileIsNotAJsonObject">
-        <source>Launch profile is not a JSON object.</source>
-        <target state="translated">啟動設定檔並非 JSON 物件。</target>
+        <source>A profile with the specified name could not be found or is not a valid JSON object.</source>
+        <target state="needs-review-translation">啟動設定檔並非 JSON 物件。</target>
         <note />
       </trans-unit>
       <trans-unit id="LaunchProfileHandlerCannotBeLocated">
diff --git a/src/redist/redist.csproj b/src/redist/redist.csproj
index c45cd6bdf..4dbd46f5d 100644
--- a/src/redist/redist.csproj
+++ b/src/redist/redist.csproj
@@ -17,15 +17,16 @@
 
   <ItemGroup>
     <PackageReference Include="Microsoft.NETCore.App" Version="$(CLI_SharedFrameworkVersion)" />
-    <PackageReference Include="Microsoft.Build.Runtime" Version="$(CLI_MSBuild_Version)" />
     <PackageReference Include="NuGet.Build.Tasks" Version="$(CLI_NuGet_Version)" />
     <PackageReference Include="Microsoft.TestPlatform.CLI" Version="$(CLI_TestPlatform_Version)" />
     <PackageReference Include="Microsoft.TestPlatform.Build" Version="$(CLI_TestPlatform_Version)" />
     <PackageReference Include="NuGet.ProjectModel" Version="$(CLI_NuGet_Version)" />
-    <!-- The project json migration commands depend on an older version of Roslyn.
-         Lift the version here to match what tool_roslyn depends on (otherwise an older version will
-         be added to the TPA when we crossgen and we won't be able to crossgen tool_roslyn -->
-    <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="$(CLI_Roslyn_Version)" />
+    <PackageReference Include="Microsoft.NETCore.Compilers" Version="$(CLI_Roslyn_Version)">
+      <ExcludeAssets>All</ExcludeAssets>
+    </PackageReference>
+    <PackageReference Include="CliDeps.Satellites.Roslyn" Version="$(CLI_Roslyn_Satellites_Version)">
+      <ExcludeAssets>All</ExcludeAssets>
+    </PackageReference>
   </ItemGroup>
 
   <ItemGroup>
@@ -74,9 +75,25 @@
   <Target Name="PublishRoslyn"
           BeforeTargets="Publish">
           
-    <DotNetPublish ToolPath="$(Stage0Directory)"
-                   Configuration="$(Configuration)"
-                   ProjectPath="$(SrcDirectory)/tool_roslyn/tool_roslyn.csproj" />
+    <ItemGroup>
+      <RoslynBits Include="$(NuGetPackagesDir)/microsoft.netcore.compilers/$(CLI_Roslyn_Version)/tools/**/*" />
+      <RoslynSatelliteBits Include="$(NuGetPackagesDir)/clideps.satellites.roslyn/$(CLI_Roslyn_Satellites_Version)/lib/netstandard1.0/**/*" />
+    </ItemGroup>
+    <Copy SourceFiles="@(RoslynBits)" DestinationFiles="@(RoslynBits->'$(RoslynDirectory)/%(RecursiveDir)%(Filename)%(Extension)')" />
+    <Copy SourceFiles="@(RoslynSatelliteBits)" DestinationFiles="@(RoslynSatelliteBits->'$(RoslynDirectory)/bincore/%(RecursiveDir)%(Filename)%(Extension)')" />
+    <ItemGroup>
+      <RetargetRuntimeConfigPaths Include="$(RoslynDirectory)/bincore/csc.runtimeconfig.json" />
+      <RetargetRuntimeConfigPaths Include="$(RoslynDirectory)/bincore/vbc.runtimeconfig.json" />
+    </ItemGroup>
+    <PropertyGroup>
+      <ReplacementPattern>"version": ".*"</ReplacementPattern>
+      <ReplacementString>"version": "$(CLI_SharedFrameworkVersion)"</ReplacementString>
+    </PropertyGroup>
+    <ReplaceFileContents
+      InputFile="%(RetargetRuntimeConfigPaths.Identity)"
+      DestinationFile="%(RetargetRuntimeConfigPaths.Identity)"
+      ReplacementPatterns="$(ReplacementPattern)"
+      ReplacementStrings="$(ReplacementString)" />
   </Target>
 
   <Target Name="PublishFSharp"
@@ -200,41 +217,72 @@
           Condition=" '$(DISABLE_CROSSGEN)' == '' "
           AfterTargets="PublishMSBuildExtensions">
     <ItemGroup>
+      <RoslynFiles Include="$(PublishDir)Roslyn\bincore\**\*" />
+      <FSharpFiles Include="$(PublishDir)FSharp\**\*" Exclude="$(PublishDir)FSharp\FSharp.Build.dll" />
+      <RemainingFiles Include="$(PublishDir)**\*" Exclude="@(RoslynFiles);@(FSharpFiles)" />
+
       <!-- Removing Full CLR built TestHost assemblies from getting Crossgen as it is throwing error -->
-      <SdkFiles Include="$(PublishDir)/**/*" Exclude="$(PublishDir)/TestHost*/**/*;$(PublishDir)/Sdks/**/*" />
+      <RemainingFiles Remove="$(PublishDir)TestHost*\**\*" />
+      <RemainingFiles Remove="$(PublishDir)Sdks\**\*" />
 
       <!-- Don't try to CrossGen .NET Framework support assemblies for .NET Standard -->
-      <SdkFiles Remove="$(PublishDir)/Microsoft\Microsoft.NET.Build.Extensions\net*\**\*" />
+      <RemainingFiles Remove="$(PublishDir)Microsoft\Microsoft.NET.Build.Extensions\net*\**\*" />
 
       <!-- Don't try to CrossGen tasks and supporting DLLs compiled for .NET Framework -->
-      <SdkFiles Remove="$(PublishDir)/Microsoft\Microsoft.NET.Build.Extensions\tools\net*\**\*" />
+      <RemainingFiles Remove="$(PublishDir)Microsoft\Microsoft.NET.Build.Extensions\tools\net*\**\*" />
     </ItemGroup>
 
-    <AddMetadataIsPE Items="@(SdkFiles)">
-      <Output TaskParameter="ResultItems" ItemName="SdkFilesWithPEMarker" />
+    <AddMetadataIsPE Items="@(RoslynFiles)">
+      <Output TaskParameter="ResultItems" ItemName="RoslynFilesWithPEMarker" />
+    </AddMetadataIsPE>
+    <AddMetadataIsPE Items="@(FSharpFiles)">
+      <Output TaskParameter="ResultItems" ItemName="FSharpFilesWithPEMarker" />
+    </AddMetadataIsPE>
+    <AddMetadataIsPE Items="@(RemainingFiles)">
+      <Output TaskParameter="ResultItems" ItemName="RemainingFilesWithPEMarker" />
     </AddMetadataIsPE>
 
     <ItemGroup>
-      <CrossgenTargets Include="%(SdkFilesWithPEMarker.FullPath)" Condition=" '%(SdkFilesWithPEMarker.IsPE)' == 'True' " />
-    </ItemGroup>
+      <RoslynTargets Include="%(RoslynFilesWithPEMarker.FullPath)" Condition=" '%(RoslynFilesWithPEMarker.IsPE)' == 'True' " />
+      <FSharpTargets Include="%(FSharpFilesWithPEMarker.FullPath)" Condition=" '%(FSharpFilesWithPEMarker.IsPE)' == 'True' " />
+      <RemainingTargets Include="%(RemainingFilesWithPEMarker.FullPath)" Condition=" '%(RemainingFilesWithPEMarker.IsPE)' == 'True' " />
 
-    <RemoveDuplicates Inputs="@(SdkFiles->'%(RootDir)%(Directory)')">
-      <Output TaskParameter="Filtered" ItemName="PublishDirSubDirectories" />
-    </RemoveDuplicates>
+      <RoslynFolders Include="@(RoslynTargets-&gt;DirectoryName()-&gt;Distinct())" />
+      <FSharpFolders Include="@(FSharpTargets-&gt;DirectoryName()-&gt;Distinct())" />
+      <RemainingFolders Include="@(RemainingTargets-&gt;DirectoryName()-&gt;Distinct())" />
+
+      <!-- FSharp.Build.dll causes the FSharp folder to be included. Remove it, as we don't want other FSharp dlls being included in the crossgen. -->
+      <RemainingFolders Remove="$(PublishDir)FSharp\**\*" />
+    </ItemGroup>
 
     <!-- Ensure crossgen tool is executable.  See https://github.com/NuGet/Home/issues/4424 -->
     <Chmod Condition=" '$(OSName)' != 'win' "
            Glob="$(CrossgenPath)"
            Mode="u+x" />
 
-    <Crossgen SourceAssembly="%(CrossgenTargets.FullPath)"
-              DestinationPath="%(CrossgenTargets.FullPath)"
-              JITPath="$(LibCLRJitPath)"
-              CrossgenPath="$(CrossgenPath)"
-              ReadyToRun="True"
-              PlatformAssemblyPaths="@(PlatformAssemblies);
-                                     @(PublishDirSubDirectories);
-                                     $(SharedFrameworkNameVersionPath)" />
+    <Crossgen
+        SourceAssembly="%(RoslynTargets.FullPath)"
+        DestinationPath="%(RoslynTargets.FullPath)"
+        JITPath="$(LibCLRJitPath)"
+        CrossgenPath="$(CrossgenPath)"
+        ReadyToRun="True"
+        PlatformAssemblyPaths="@(PlatformAssemblies);@(RoslynFolders);$(SharedFrameworkNameVersionPath)" />
+
+    <Crossgen
+        SourceAssembly="%(FSharpTargets.FullPath)"
+        DestinationPath="%(FSharpTargets.FullPath)"
+        JITPath="$(LibCLRJitPath)"
+        CrossgenPath="$(CrossgenPath)"
+        ReadyToRun="True"
+        PlatformAssemblyPaths="@(PlatformAssemblies);@(FSharpFolders);$(SharedFrameworkNameVersionPath)" />
+
+    <Crossgen
+        SourceAssembly="%(RemainingTargets.FullPath)"
+        DestinationPath="%(RemainingTargets.FullPath)"
+        JITPath="$(LibCLRJitPath)"
+        CrossgenPath="$(CrossgenPath)"
+        ReadyToRun="True"
+        PlatformAssemblyPaths="@(PlatformAssemblies);@(RemainingFolders);$(SharedFrameworkNameVersionPath)" />
   </Target>
 
   <Target Name="ChmodPublishDir"
@@ -243,8 +291,6 @@
     
     <Exec Command="find $(SdkOutputDirectory) -type d -exec chmod 755 {} \;" />
     <Exec Command="find $(SdkOutputDirectory) -type f -exec chmod 644 {} \;" />
-    <Chmod Mode="755" Glob="$(SdkOutputDirectory)/Roslyn/RunCsc.sh" />
-    <Chmod Mode="755" Glob="$(SdkOutputDirectory)/Roslyn/RunVbc.sh" />
     <Chmod Mode="755" Glob="$(SdkOutputDirectory)/FSharp/RunFsc.sh" />
   </Target>
 
diff --git a/src/tool_roslyn/RunCsc.cmd b/src/tool_roslyn/RunCsc.cmd
deleted file mode 100644
index 7398082b2..000000000
--- a/src/tool_roslyn/RunCsc.cmd
+++ /dev/null
@@ -1,6 +0,0 @@
-@echo off
-
-REM Copyright (c) .NET Foundation and contributors. All rights reserved.
-REM Licensed under the MIT license. See LICENSE file in the project root for full license information.
-
-"%~dp0..\..\..\dotnet" "%~dp0csc.exe" %*
diff --git a/src/tool_roslyn/RunCsc.sh b/src/tool_roslyn/RunCsc.sh
deleted file mode 100755
index 47aed63d1..000000000
--- a/src/tool_roslyn/RunCsc.sh
+++ /dev/null
@@ -1,17 +0,0 @@
-#!/usr/bin/env bash
-#
-# Copyright (c) .NET Foundation and contributors. All rights reserved.
-# Licensed under the MIT license. See LICENSE file in the project root for full license information.
-#
-
-set -e
-
-SOURCE="${BASH_SOURCE[0]}"
-while [ -h "$SOURCE" ]; do # resolve $SOURCE until the file is no longer a symlink
-  DIR="$( cd -P "$( dirname "$SOURCE" )" && pwd )"
-  SOURCE="$(readlink "$SOURCE")"
-  [[ "$SOURCE" != /* ]] && SOURCE="$DIR/$SOURCE" # if $SOURCE was a relative symlink, we need to resolve it relative to the path where the symlink file was located
-done
-DIR="$( cd -P "$( dirname "$SOURCE" )" && pwd )"
-
-"$DIR/../../../dotnet" "$DIR/csc.exe" "$@"
diff --git a/src/tool_roslyn/RunVbc.cmd b/src/tool_roslyn/RunVbc.cmd
deleted file mode 100644
index e891b1bf5..000000000
--- a/src/tool_roslyn/RunVbc.cmd
+++ /dev/null
@@ -1,6 +0,0 @@
-@echo off
-
-REM Copyright (c) .NET Foundation and contributors. All rights reserved.
-REM Licensed under the MIT license. See LICENSE file in the project root for full license information.
-
-"%~dp0..\..\..\dotnet" "%~dp0vbc.exe" %*
diff --git a/src/tool_roslyn/RunVbc.sh b/src/tool_roslyn/RunVbc.sh
deleted file mode 100755
index 3dda886a0..000000000
--- a/src/tool_roslyn/RunVbc.sh
+++ /dev/null
@@ -1,17 +0,0 @@
-#!/usr/bin/env bash
-#
-# Copyright (c) .NET Foundation and contributors. All rights reserved.
-# Licensed under the MIT license. See LICENSE file in the project root for full license information.
-#
-
-set -e
-
-SOURCE="${BASH_SOURCE[0]}"
-while [ -h "$SOURCE" ]; do # resolve $SOURCE until the file is no longer a symlink
-  DIR="$( cd -P "$( dirname "$SOURCE" )" && pwd )"
-  SOURCE="$(readlink "$SOURCE")"
-  [[ "$SOURCE" != /* ]] && SOURCE="$DIR/$SOURCE" # if $SOURCE was a relative symlink, we need to resolve it relative to the path where the symlink file was located
-done
-DIR="$( cd -P "$( dirname "$SOURCE" )" && pwd )"
-
-"$DIR/../../../dotnet" "$DIR/vbc.exe" "$@"
diff --git a/src/tool_roslyn/tool_roslyn.csproj b/src/tool_roslyn/tool_roslyn.csproj
deleted file mode 100644
index bd702ca7c..000000000
--- a/src/tool_roslyn/tool_roslyn.csproj
+++ /dev/null
@@ -1,68 +0,0 @@
-<Project Sdk="Microsoft.NET.Sdk" ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
-  <Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), dir.props))\dir.props" />
-  <Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), dir.props))\dir.tasks" />
-
-  <PropertyGroup>
-    <VersionPrefix>$(CliVersionPrefix)</VersionPrefix>
-    <TargetFramework>netcoreapp2.0</TargetFramework>
-    <RuntimeFrameworkVersion>$(CLI_SharedFrameworkVersion)</RuntimeFrameworkVersion>
-    <GenerateRuntimeConfigurationFiles>true</GenerateRuntimeConfigurationFiles>
-    <PublishDir>$(RoslynDirectory)</PublishDir>
-    <VersionSuffix>$(CommitCount)</VersionSuffix>
-  </PropertyGroup>
-  
-  <ItemGroup>
-    <PackageReference Include="Microsoft.NetCore.App" Version="$(CLI_SharedFrameworkVersion)" />
-    <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="$(CLI_Roslyn_Version)" />
-    <PackageReference Include="Microsoft.CodeAnalysis.Build.Tasks" Version="$(CLI_Roslyn_Version)" />
-    <PackageReference Include="Microsoft.Net.Compilers.netcore" Version="$(CLI_Roslyn_Version)" />
-    <PackageReference Include="Microsoft.DiaSymReader.Native" Version="$(CLI_DiaSymNative_Version)" Condition="'$(OSName)' == 'win'" />
-    <PackageReference Include="CliDeps.Satellites.Roslyn" Version="$(CLI_Roslyn_Satellites_Version)" />
-  </ItemGroup>
-
-  <ItemGroup>
-    <Content Include="RunCsc.sh;RunCsc.cmd;RunVbc.sh;RunVbc.cmd">
-      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
-      <CopyToPublishDirectory>PreserveNewest</CopyToPublishDirectory>
-    </Content>
-  </ItemGroup>
-
-  <Target Name="MakeCscAndVbcRunnableAndMoveToPublishDir"
-          AfterTargets="Publish"
-          BeforeTargets="RemoveFilesAfterPublish">
-    <ItemGroup>
-      <AssetsToRemoveFromDeps Include="runtimes/any/native/csc.dll" 
-                              SectionName="runtimeTargets" />
-      <AssetsToRemoveFromDeps Include="runtimes/any/native/vbc.dll" 
-                              SectionName="runtimeTargets" />
-      <AssetsToRemoveFromDeps Include="tool_roslyn.dll" 
-                              SectionName="runtime"/>
-    </ItemGroup>
-    
-    <RemoveAssetFromDepsPackages DepsFile="$(PublishDir)/$(TargetName).deps.json"
-                                 SectionName="%(AssetsToRemoveFromDeps.SectionName)"
-                                 AssetPath="%(AssetsToRemoveFromDeps.Identity)" />
-   
-    <Copy SourceFiles="$(PublishDir)/runtimes/any/native/csc.dll;
-                       $(PublishDir)/$(TargetName).runtimeconfig.json;
-                       $(PublishDir)/$(TargetName).deps.json;"
-          DestinationFiles="$(PublishDir)/csc.exe;
-                            $(PublishDir)/csc.runtimeconfig.json;
-                            $(PublishDir)/csc.deps.json;" />
-
-    <Copy SourceFiles="$(PublishDir)/runtimes/any/native/vbc.dll;
-                       $(PublishDir)/$(TargetName).runtimeconfig.json;
-                       $(PublishDir)/$(TargetName).deps.json;"
-          DestinationFiles="$(PublishDir)/vbc.exe;
-                            $(PublishDir)/vbc.runtimeconfig.json;
-                            $(PublishDir)/vbc.deps.json;" />
-  </Target>
-
-  <Target Name="RemoveFilesAfterPublish"
-          AfterTargets="Publish">
-    <Delete Files="$(PublishDir)/$(TargetName).dll" />
-    <Delete Files="$(PublishDir)/$(TargetName).pdb" />
-    <Delete Files="$(PublishDir)/$(TargetName).runtimeconfig.json" />
-    <Delete Files="$(PublishDir)/$(TargetName).deps.json" />
-  </Target>
-</Project>
diff --git a/test/Microsoft.DotNet.Cli.Utils.Tests/GivenAProjectToolsCommandResolver.cs b/test/Microsoft.DotNet.Cli.Utils.Tests/GivenAProjectToolsCommandResolver.cs
index 7fe281b5d..83a877151 100644
--- a/test/Microsoft.DotNet.Cli.Utils.Tests/GivenAProjectToolsCommandResolver.cs
+++ b/test/Microsoft.DotNet.Cli.Utils.Tests/GivenAProjectToolsCommandResolver.cs
@@ -309,7 +309,7 @@ namespace Microsoft.DotNet.Tests
 
             result.Should().NotBeNull();
 
-            result.Args.Should().Contain("--fx-version 2.0.1");
+            result.Args.Should().Contain("--fx-version 2.0.0");
         }
 
         [Fact]
diff --git a/test/dotnet-msbuild.Tests/GivenMsbuildForwardingApp.cs b/test/dotnet-msbuild.Tests/GivenMsbuildForwardingApp.cs
index 4450258ee..4dad315e3 100644
--- a/test/dotnet-msbuild.Tests/GivenMsbuildForwardingApp.cs
+++ b/test/dotnet-msbuild.Tests/GivenMsbuildForwardingApp.cs
@@ -31,8 +31,6 @@ namespace Microsoft.DotNet.Cli.MSBuild.Tests
 
         [Theory]
         [InlineData("MSBuildExtensionsPath")]
-        [InlineData("CscToolExe")]
-        [InlineData("VbcToolExe")]
         [InlineData("MSBuildSDKsPath")]
         [InlineData("DOTNET_CLI_TELEMETRY_SESSIONID")]
         public void ItSetsEnvironmentalVariables(string envVarName)
@@ -66,27 +64,6 @@ namespace Microsoft.DotNet.Cli.MSBuild.Tests
                 .Exist();
         }
 
-        [Fact]
-        public void ItSetsCscToolExePathToValidPath()
-        {
-            var msbuildPath = "<msbuildpath>";
-            var envVar = "CscToolExe";
-            new FileInfo(new MSBuildForwardingApp(new string[0], msbuildPath)
-                                .GetProcessStartInfo()
-                                .Environment[envVar])
-                .Should().NotBeNull("constructor will throw on invalid path");
-        }
-
-        [Fact]
-        public void ItSetsVbcToolExePathToValidPath()
-        {
-            var msbuildPath = "<msbuildpath>";
-            var envVar = "VbcToolExe";
-            new FileInfo(new MSBuildForwardingApp(new string[0], msbuildPath)
-                                .GetProcessStartInfo()
-                                .Environment[envVar])
-                .Should().NotBeNull("constructor will throw on invalid path");
-        }
 
         [Fact]
         public void ItSetsOrIgnoresTelemetrySessionId()