Hello, I try to install HTTP package. I make: cabal install HTTP and got error: [ 1 of 18] Compiling Network.HTTP.Base64 ( Network/HTTP/Base64.hs, dist/build/Network/HTTP/Base64.o ) [ 2 of 18] Compiling Network.HTTP.MD5Aux ( Network/HTTP/MD5Aux.hs, dist/build/Network/HTTP/MD5Aux.o ) [ 3 of 18] Compiling Paths_HTTP ( dist/build/autogen/Paths_HTTP.hs, dist/build/Paths_HTTP.o ) dist/build/autogen/Paths_HTTP.hs:21:13: Not in scope: `catch' dist/build/autogen/Paths_HTTP.hs:22:13: Not in scope: `catch' dist/build/autogen/Paths_HTTP.hs:23:14: Not in scope: `catch' dist/build/autogen/Paths_HTTP.hs:24:17: Not in scope: `catch' cabal: Error: some packages failed to install: HTTP-4000.2.6 failed during the building phase. The exception was: ExitFailure 1 How can i install it correctly? Thank you.