Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: Monadius (user goal)
rejecting: Monadius-0.99 (global constraint requires ==0.98)
trying: Monadius-0.98
trying: base-4.8.1.0/installed-4f7... (dependency of Monadius-0.98)
next goal: OpenGL (dependency of Monadius-0.98)
rejecting: OpenGL-2.13.0.0, 2.12.0.1, 2.12.0.0, 2.11.1.0, 2.11.0.0, 2.10.0.2,
2.10.0.1, 2.10.0.0, 2.9.2.0, 2.9.1.0, 2.9.0.0, 2.8.0.0 (conflict: Monadius =>
OpenGL>=2.4 && <2.7)
trying: OpenGL-2.6.0.1
next goal: Tensor (dependency of OpenGL-2.6.0.1)
rejecting: Tensor-1.1.0.1, 1.1.0.0 (conflict: OpenGL => Tensor==1.0.*)
rejecting: Tensor-1.0.0.1, 1.0.0.0 (conflict: base==4.8.1.0/installed-4f7...,
Tensor => base>=3 && <4.7)
Dependency tree exhaustively searched.