Resolving dependencies...
Downloading pasty-0.1...
Configuring pasty-0.1...
Building pasty-0.1...
Preprocessing executable 'pasty' for pasty-0.1...
[1 of 7] Compiling PastyData        ( src/PastyData.hs, dist/build/pasty/pasty-tmp/PastyData.o )
[2 of 7] Compiling ByteStringHelper ( src/ByteStringHelper.hs, dist/build/pasty/pasty-tmp/ByteStringHelper.o )
[3 of 7] Compiling Paster           ( src/Paster.hs, dist/build/pasty/pasty-tmp/Paster.o )
[4 of 7] Compiling Parser           ( src/Parser.hs, dist/build/pasty/pasty-tmp/Parser.o )
[5 of 7] Compiling IO               ( src/IO.hs, dist/build/pasty/pasty-tmp/IO.o )

src/IO.hs:57:14: Not in scope: `try'
Failed to install pasty-0.1
cabal: Error: some packages failed to install:
pasty-0.1 failed during the building phase. The exception was:
ExitFailure 1