Resolving dependencies...
cabal: Could not resolve dependencies:
[__0] trying: liquid-containers-0.6.2.1 (user goal)
[__1] trying: liquidhaskell-0.8.10.1 (dependency of liquid-containers)
[__2] next goal: ghc (dependency of liquidhaskell)
[__2] rejecting: ghc-8.6.3/installed-8.6.3 (conflict: liquid-containers =>
containers>=0.6.2.1 && <0.7, ghc => containers==0.6.0.1/installed-0.6.0.1)
[__2] trying: ghc-8.10.1
[__3] next goal: base (dependency of liquidhaskell)
[__3] rejecting: base-4.12.0.0/installed-4.12.0.0 (conflict: ghc => base<0 &&
==4.14.*)
[__3] skipping: base-4.14.0.0, base-4.13.0.0, base-4.12.0.0, base-4.11.1.0,
base-4.11.0.0, base-4.10.1.0, base-4.10.0.0, base-4.9.1.0, base-4.9.0.0,
base-4.8.2.0, base-4.8.1.0, base-4.8.0.0, base-4.7.0.2, base-4.7.0.1,
base-4.7.0.0, base-4.6.0.1, base-4.6.0.0, base-4.5.1.0, base-4.5.0.0,
base-4.4.1.0, base-4.4.0.0, base-4.3.1.0, base-4.3.0.0, base-4.2.0.2,
base-4.2.0.1, base-4.2.0.0, base-4.1.0.0, base-4.0.0.0, base-3.0.3.2,
base-3.0.3.1 (has the same characteristics that caused the previous version to
fail: excluded by constraint '<0 && ==4.14.*' from 'ghc')
[__3] fail (backjumping, conflict set: base, ghc, liquidhaskell)
After searching the rest of the dependency tree exhaustively, these were the
goals I've had most trouble fulfilling: ghc, base, liquid-containers,
liquidhaskell
Try running with --minimize-conflict-set to improve the error message.