Resolving dependencies...
Downloading frown-0.6...
Configuring frown-0.6...
Warning: 'hs-source-dirs: ./Lib' directory does not exist.
Building frown-0.6...
Preprocessing executable 'frown' for frown-0.6...

Main.lhs:39:10:
    Could not find module ‘Lexer2’
    Perhaps you meant
      Lexer (needs flag -package-key ghc-7.10.3)
      Lexeme (needs flag -package-key ghc-7.10.3)
    Use -v to see a list of the files searched for.

Main.lhs:41:10:
    Could not find module ‘GParser2’
    Perhaps you meant Parser (needs flag -package-key ghc-7.10.3)
    Use -v to see a list of the files searched for.

Main.lhs:42:10:
    Could not find module ‘Convert’
    It is a member of the hidden package ‘ghc-7.10.3’.
    Perhaps you need to add ‘ghc’ to the build-depends in your .cabal file.
    Use -v to see a list of the files searched for.

Main.lhs:43:10:
    Could not find module ‘LR0’
    Use -v to see a list of the files searched for.

Main.lhs:44:10:
    Could not find module ‘Lookahead’
    Use -v to see a list of the files searched for.

Main.lhs:45:10:
    Could not find module ‘Case’
    Use -v to see a list of the files searched for.

Main.lhs:47:20:
    Could not find module ‘Standard’
    Use -v to see a list of the files searched for.

Main.lhs:48:20:
    Could not find module ‘Compact’
    Use -v to see a list of the files searched for.

Main.lhs:49:20:
    Could not find module ‘GVStack’
    Use -v to see a list of the files searched for.

Main.lhs:50:20:
    Could not find module ‘Stackless’
    Use -v to see a list of the files searched for.

Main.lhs:51:10:
    Could not find module ‘Base’
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Main.lhs:52:10:
    Could not find module ‘Options’
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Main.lhs:54:20:
    Could not find module ‘Prettier’
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Main.lhs:55:20:
    Could not find module ‘SearchTree’
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Failed to install frown-0.6
cabal: Error: some packages failed to install:
frown-0.6 failed during the building phase. The exception was:
ExitFailure 1