Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: scan-vector-machine (user goal)
rejecting: scan-vector-machine-0.2.7, 0.2.6 (global constraint requires
==0.2.5)
trying: scan-vector-machine-0.2.5
trying: base-4.8.1.0/installed-4f7... (dependency of
scan-vector-machine-0.2.5)
next goal: dph-base (dependency of scan-vector-machine-0.2.5)
rejecting: dph-base-0.7.0.1 (conflict: base==4.8.1.0/installed-4f7...,
dph-base => base==4.6.*)
rejecting: dph-base-0.6.1.1, 0.6.0.1 (conflict:
base==4.8.1.0/installed-4f7..., dph-base => base==4.5.*)
rejecting: dph-base-0.5.1.1 (conflict: base==4.8.1.0/installed-4f7...,
dph-base => base==4.4.*)
Dependency tree exhaustively searched.