Resolving dependencies... Downloading webkit-javascriptcore-0.14.1.0... Failed to install webkit-javascriptcore-0.14.1.0 cabal: Error: some packages failed to install: webkit-javascriptcore-0.14.1.0 failed during the configure step. The exception was: user error (The package 'webkit-javascriptcore' requires Cabal library version -any && >=1.24 but no suitable version is installed.)