Resolving dependencies... cabal: Could not resolve dependencies: next goal: shelltestrunner (user goal) rejecting: shelltestrunner-1.3.5, shelltestrunner-1.3.4, shelltestrunner-1.3.3, shelltestrunner-1.3.2, shelltestrunner-1.3.1, shelltestrunner-1.3, shelltestrunner-1.2.1, shelltestrunner-1.2, shelltestrunner-1.1, shelltestrunner-1.0, shelltestrunner-0.9, shelltestrunner-0.8, shelltestrunner-0.7 (constraint from user target requires ==0.6) trying: shelltestrunner-0.6 trying: base-4.9.0.0/installed-4.9... (dependency of shelltestrunner-0.6) next goal: test-framework-hunit (dependency of shelltestrunner-0.6) rejecting: test-framework-hunit-0.3.0.2, test-framework-hunit-0.3.0.1, test-framework-hunit-0.3.0 (conflict: shelltestrunner => test-framework-hunit>=0.2 && <0.3) trying: test-framework-hunit-0.2.7 next goal: test-framework (dependency of shelltestrunner-0.6) rejecting: test-framework-0.8.1.1, test-framework-0.8.1.0, test-framework-0.8.0.3, test-framework-0.8.0.2, test-framework-0.8.0.1, test-framework-0.8, test-framework-0.7.0 (conflict: test-framework-hunit => test-framework>=0.2 && <0.7) rejecting: test-framework-0.6.2, test-framework-0.6.1, test-framework-0.6, test-framework-0.5, test-framework-0.4.2.3 (conflict: base==4.9.0.0/installed-4.9..., test-framework => base>=3 && <4.7 || <3) rejecting: test-framework-0.4.2.2 (conflict: base==4.9.0.0/installed-4.9..., test-framework => base>=3 && <4.5 || <3) rejecting: test-framework-0.4.2.1 (conflict: base==4.9.0.0/installed-4.9..., test-framework => base>=3 && <4.7 || <3) rejecting: test-framework-0.4.2.0, test-framework-0.4.1.1, test-framework-0.4.1, test-framework-0.4.0, test-framework-0.3.3, test-framework-0.3.2, test-framework-0.3.1, test-framework-0.3.0, test-framework-0.2.4, test-framework-0.2.3, test-framework-0.2.2, test-framework-0.2.1, test-framework-0.2.0 (conflict: base==4.9.0.0/installed-4.9..., test-framework => base>=3 && <4.5 || <3) rejecting: test-framework-0.1.2, test-framework-0.1.1, test-framework-0.1 (conflict: test-framework-hunit => test-framework>=0.2 && <0.7) Dependency tree exhaustively searched.