Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: HStringTemplate (user goal)
rejecting: HStringTemplate-0.8.3, 0.8.2, 0.8.1, 0.8, 0.7.3, 0.7.1, 0.7.0,
0.6.12, 0.6.11, 0.6.10, 0.6.9, 0.6.8, 0.6.6, 0.6.5, 0.6.4, 0.6.3, 0.6.2,
0.6.1, 0.6, 0.5.1.3, 0.5.1.2, 0.5.1.1 (global constraint requires ==0.5.1)
trying: HStringTemplate-0.5.1
trying: base-4.8.1.0/installed-4f7... (dependency of HStringTemplate-0.5.1)
trying: parsec-3.1.9 (dependency of HStringTemplate-0.5.1)
trying: HStringTemplate-0.5.1:+quasi-quotation
trying: HStringTemplate-0.5.1:+simple-generics
rejecting: HStringTemplate-0.5.1:+small-base (conflict: parsec==3.1.9,
HStringTemplate-0.5.1:small-base => parsec<3)
rejecting: HStringTemplate-0.5.1:-small-base (conflict:
base==4.8.1.0/installed-4f7..., HStringTemplate-0.5.1:small-base => base<3)
Dependency tree exhaustively searched.