This should be related to directory 1.3.

    Common.hs:3:16: error:
        Conflicting exports for ‘getFileSize’:
           ‘module X’ exports ‘X.getFileSize’
             imported from ‘Utility.FileSize’ at Common.hs:32:1-28
             (and originally defined at Utility/FileSize.hs:26:1-11)
           ‘module X’ exports ‘X.getFileSize’
             imported from ‘Utility.Directory’ at Common.hs:33:1-29
             (and originally defined in ‘System.Directory’)
