Resolving dependencies...
cabal: Could not resolve dependencies:
trying: synthesizer-llvm-0.7.0.1 (user goal)
trying: containers-0.5.6.2/installed-2de... (dependency of
synthesizer-llvm-0.7.0.1)
next goal: synthesizer-midi (dependency of synthesizer-llvm-0.7.0.1)
rejecting: synthesizer-midi-0.6.0.2, 0.6.0.1, 0.6 (conflict: containers =>
deepseq==1.4.1.1/installed-8fb..., synthesizer-midi => deepseq>=1.1 && <1.4)
rejecting: synthesizer-midi-0.5 (conflict: synthesizer-llvm =>
synthesizer-midi>=0.6 && <0.7)
Dependency tree exhaustively searched.