Resolving dependencies...
Downloading NXT-0.1.5...
Configuring NXT-0.1.5...
Building NXT-0.1.5...
Preprocessing library NXT-0.1.5...
[ 1 of 12] Compiling Robotics.NXT.Externals ( lib/Robotics/NXT/Externals.hs, dist/build/Robotics/NXT/Externals.o )
[ 2 of 12] Compiling Robotics.NXT.Internals ( lib/Robotics/NXT/Internals.hs, dist/build/Robotics/NXT/Internals.o )
[ 3 of 12] Compiling Robotics.NXT.Data ( lib/Robotics/NXT/Data.hs, dist/build/Robotics/NXT/Data.o )

lib/Robotics/NXT/Data.hs:79:80:
    Could not deduce (Show a) arising from a use of `show'
    from the context (Integral a)
      bound by the type signature for
                 toUByte :: Integral a => a -> [Word8]
      at lib/Robotics/NXT/Data.hs:77:12-37
    Possible fix:
      add (Show a) to the context of
        the type signature for toUByte :: Integral a => a -> [Word8]
    In the second argument of `(++)', namely `show x'
    In the second argument of `($)', namely `"toUByte: " ++ show x'
    In the expression: throw . PatternMatchFail $ "toUByte: " ++ show x

lib/Robotics/NXT/Data.hs:83:82:
    Could not deduce (Show a) arising from a use of `show'
    from the context (Integral a)
      bound by the type signature for
                 toUWord :: Integral a => a -> [Word8]
      at lib/Robotics/NXT/Data.hs:81:12-37
    Possible fix:
      add (Show a) to the context of
        the type signature for toUWord :: Integral a => a -> [Word8]
    In the second argument of `(++)', namely `show x'
    In the second argument of `($)', namely `"toUWord: " ++ show x'
    In the expression: throw . PatternMatchFail $ "toUWord: " ++ show x

lib/Robotics/NXT/Data.hs:87:88:
    Could not deduce (Show a) arising from a use of `show'
    from the context (Integral a)
      bound by the type signature for
                 toULong :: Integral a => a -> [Word8]
      at lib/Robotics/NXT/Data.hs:85:12-37
    Possible fix:
      add (Show a) to the context of
        the type signature for toULong :: Integral a => a -> [Word8]
    In the second argument of `(++)', namely `show x'
    In the second argument of `($)', namely `"toULong: " ++ show x'
    In the expression: throw . PatternMatchFail $ "toULong: " ++ show x

lib/Robotics/NXT/Data.hs:93:82:
    Could not deduce (Show a) arising from a use of `show'
    from the context (Integral a)
      bound by the type signature for
                 toSByte :: Integral a => a -> [Word8]
      at lib/Robotics/NXT/Data.hs:90:12-37
    Possible fix:
      add (Show a) to the context of
        the type signature for toSByte :: Integral a => a -> [Word8]
    In the second argument of `(++)', namely `show x'
    In the second argument of `($)', namely `"toSByte: " ++ show x'
    In the expression: throw . PatternMatchFail $ "toSByte: " ++ show x

lib/Robotics/NXT/Data.hs:98:84:
    Could not deduce (Show a) arising from a use of `show'
    from the context (Integral a)
      bound by the type signature for
                 toSWord :: Integral a => a -> [Word8]
      at lib/Robotics/NXT/Data.hs:95:12-37
    Possible fix:
      add (Show a) to the context of
        the type signature for toSWord :: Integral a => a -> [Word8]
    In the second argument of `(++)', namely `show x'
    In the second argument of `($)', namely `"toSWord: " ++ show x'
    In the expression: throw . PatternMatchFail $ "toSWord: " ++ show x

lib/Robotics/NXT/Data.hs:103:90:
    Could not deduce (Show a) arising from a use of `show'
    from the context (Integral a)
      bound by the type signature for
                 toSLong :: Integral a => a -> [Word8]
      at lib/Robotics/NXT/Data.hs:100:12-37
    Possible fix:
      add (Show a) to the context of
        the type signature for toSLong :: Integral a => a -> [Word8]
    In the second argument of `(++)', namely `show x'
    In the second argument of `($)', namely `"toSLong: " ++ show x'
    In the expression: throw . PatternMatchFail $ "toSLong: " ++ show x
Failed to install NXT-0.1.5
cabal: Error: some packages failed to install:
NXT-0.1.5 failed during the building phase. The exception was:
ExitFailure 1