CODEWITHSUNDEEP
haskellcabalcabal-install
Ackdari
Ackdari

Reputation: 3498

Cabal trouble resolving dependencies

I'm tring to install the package cabal-debian globally using cabal v2-install cabal-debian and get this error message:

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.

I am using cabal 3.0.0.0 and have ghc 8.6.5 installed.

Upvotes: 2

Views: 846

Answers (1)

Daniel Wagner
Daniel Wagner

Reputation: 152682

To me, this looks like you have a version of binary installed that isn't compatible with the boot libraries that come with the compiler. I recommend that you edit the file

~/.ghc/<something>-8.6.5/environments/default

and delete the line that mentions binary, then try again. (The <something> is almost certainly x86_64-linux.)

Upvotes: 3

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