29 May
2020
29 May
'20
6:56 a.m.
Hello July, Il 29 maggio 2020 alle 18:35 Treee July ha scritto:
Hello, I installed the latest version of ghc, which caused one of my packages does not satisfy the constraint of the version. I just wondering if there exists a convenient way to degrade the version of the base. I use Arch Linux, which is not easy to install an elder version.
if you are using cabal, --allow-newer can ease some of the pain. Failing that, -w will work — but you need to download and locally install the appropriate ghc first. Let us know if that’s enough