Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: dropsolve (user goal)
rejecting: dropsolve-0.1.2.1, 0.1.2 (global constraint requires ==0.1.1)
trying: dropsolve-0.1.1
trying: base-4.8.1.0/installed-4f7... (dependency of dropsolve-0.1.1)
next goal: haskell98 (dependency of dropsolve-0.1.1)
rejecting: haskell98-2.0.0.3, 2.0.0.2, 2.0.0.1, 2.0.0.0 (conflict: dropsolve
=> haskell98>=1.1 && <1.2)
rejecting: haskell98-1.1.0.1, 1.1.0.0 (conflict:
base==4.8.1.0/installed-4f7..., haskell98 => base>=3 && <4.6)
rejecting: haskell98-1.0.1.1, 1.0.1.0, 1.0 (conflict: dropsolve =>
haskell98>=1.1 && <1.2)
Dependency tree exhaustively searched.