Я пытаюсь установить пакет cabal-debian глобально с помощью cabal v2-install cabal-debian и получить это сообщение об ошибке:
Resolving dependencies...
cabal: Could not resolve dependencies:
[__0] trying: base-4.12.0.0/installed-4.1... (user goal)
[__1] trying: binary-0.8.7.0 (user goal)
[__2] next goal: ghc (user goal)
[__2] rejecting: ghc-8.6.5/installed-8.6... (conflict: binary==0.8.7.0, ghc =>
binary==0.8.6.0/installed-0.8...)
[__2] trying: ghc-8.6.5
[__3] rejecting: ghc:-buildable (conflict: base==4.12.0.0/installed-4.1...,
ghc -buildable => base<0)
[__3] rejecting: ghc:+buildable (manual flag can only be changed explicitly)
[__3] fail (backjumping, conflict set: base, ghc, ghc:buildable)
After searching the rest of the dependency tree exhaustively, these were the
goals I've had most trouble fulfilling: binary, base, ghc, ghc:buildable
Try running with --minimize-conflict-set to improve the error message.
Я использую cabal 3.0.0.0 и у меня установлено ghc 8.6.5.