Resolving dependencies...
Error: cabal: Could not resolve dependencies:
[__0] next goal: stackctl (user goal)
[__0] rejecting: stackctl-1.4.2.1 (constraint from user target requires
==1.4.2.0)
[__0] trying: stackctl-1.4.2.0
[__1] unknown package: amazonka-sso (dependency of stackctl)
[__1] fail (backjumping, conflict set: amazonka-sso, stackctl)
After searching the rest of the dependency tree exhaustively, these were the
goals I've had most trouble fulfilling: stackctl, amazonka-sso