Resolving dependencies... cabal: Could not resolve dependencies: next goal: highlighting-kate (user goal) rejecting: highlighting-kate-0.6.3, highlighting-kate-0.6.2.1, highlighting-kate-0.6.2, highlighting-kate-0.6.1, highlighting-kate-0.6, highlighting-kate-0.5.15, highlighting-kate-0.5.14, highlighting-kate-0.5.13, highlighting-kate-0.5.12, highlighting-kate-0.5.11.1, highlighting-kate-0.5.11, highlighting-kate-0.5.10, highlighting-kate-0.5.9, highlighting-kate-0.5.8.5, highlighting-kate-0.5.8.4, highlighting-kate-0.5.8.3, highlighting-kate-0.5.8.2, highlighting-kate-0.5.8.1, highlighting-kate-0.5.8, highlighting-kate-0.5.7.1, highlighting-kate-0.5.7, highlighting-kate-0.5.6.1, highlighting-kate-0.5.6, highlighting-kate-0.5.5.1, highlighting-kate-0.5.5, highlighting-kate-0.5.4, highlighting-kate-0.5.3.9, highlighting-kate-0.5.3.8, highlighting-kate-0.5.3.7, highlighting-kate-0.5.3.6, highlighting-kate-0.5.3.5, highlighting-kate-0.5.3.4, highlighting-kate-0.5.3.3, highlighting-kate-0.5.3.2, highlighting-kate-0.5.3.1, highlighting-kate-0.5.3, highlighting-kate-0.5.2, highlighting-kate-0.5.1, highlighting-kate-0.5.0.6, highlighting-kate-0.5.0.5, highlighting-kate-0.5.0.4, highlighting-kate-0.5.0.3, highlighting-kate-0.5.0.2, highlighting-kate-0.5.0.1, highlighting-kate-0.5, highlighting-kate-0.4, highlighting-kate-0.3.1 (constraint from user target requires ==0.3) trying: highlighting-kate-0.3 next goal: base (dependency of highlighting-kate-0.3) rejecting: base-4.9.0.0/installed-4.9... (conflict: highlighting-kate => base<0 || <3) rejecting: 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 (constraint from non-upgradeable package requires installed instance) Dependency tree exhaustively searched.