Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: algebra (user goal)
rejecting: algebra-4.3, algebra-4.2, algebra-4.1, algebra-4.0, algebra-3.1
(constraint from user target requires ==3.0.2)
trying: algebra-3.0.2
trying: void-0.7.1 (dependency of algebra-3.0.2)
trying: bytestring-0.10.8.1/installed-0.1... (dependency of hashable-1.2.4.0)
next goal: deepseq (dependency of void-0.7.1)
rejecting: deepseq-1.4.2.0/installed-1.4... (conflict: deepseq =>
array==0.5.1.1/installed-0.5..., algebra => array>=0.3.0.2 && <0.5)
rejecting: deepseq-1.4.2.0, deepseq-1.4.1.2, deepseq-1.4.1.1, deepseq-1.4.1.0,
deepseq-1.4.0.0, deepseq-1.3.0.2, deepseq-1.3.0.1, deepseq-1.3.0.0,
deepseq-1.2.0.1, deepseq-1.2.0.0, deepseq-1.1.0.2, deepseq-1.1.0.1,
deepseq-1.1.0.0, deepseq-1.0.0.0 (conflict: bytestring =>
deepseq==1.4.2.0/installed-1.4...)
Backjump limit reached (currently 2000, change with --max-backjumps or try to
run with --reorder-goals).