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’)