before_install:
- |
if [[ "$TRAVIS_OS_NAME" == "windows" ]]; then
- choco install ghc cabal nodejs
+ choco install cabal -pre
+ choco install ghc nodejs
/C/ProgramData/chocolatey/bin/RefreshEnv.cmd
export PATH=/C/ProgramData/chocolatey/lib/ghc/tools/ghc-8.6.5/bin:${PATH}
/C/ProgramData/chocolatey/bin/RefreshEnv.cmd