Resolving dependencies... cabal: Could not resolve dependencies: next goal: hfractal (user goal) rejecting: hfractal-0.4.2.5, 0.4.2.4 (global constraint requires ==0.4.2.2) trying: hfractal-0.4.2.2 trying: GLUT-2.7.0.3 (dependency of hfractal-0.4.2.2) next goal: OpenGLRaw (dependency of hfractal-0.4.2.2) rejecting: OpenGLRaw-2.6.0.0, 2.5.5.0, 2.5.4.0, 2.5.3.0, 2.5.2.1, 2.5.1.0, 2.5.0.0, 2.4.1.0, 2.4.0.0, 2.3.0.0, 2.2.0.0, 2.1.0.0, 2.0.0.0, 1.5.0.1, 1.5.0.0, 1.4.0.0, 1.3.0.0, 1.2.0.0, 1.1.0.2, 1.1.0.1, 1.1.0.0 (conflict: hfractal => OpenGLRaw<1.1.0.0) rejecting: OpenGLRaw-1.0.1.0, 1.0.0.0 (conflict: GLUT => OpenGLRaw>=2.3 && <2.7) Dependency tree exhaustively searched.