Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: vector-instances-collections (user goal)
rejecting: vector-instances-collections-0.1.0.1 (constraint from user target
requires ==0.1)
trying: vector-instances-collections-0.1
trying: base-4.9.0.0/installed-4.9... (dependency of
vector-instances-collections-0.1)
next goal: template-haskell (dependency of vector-instances-collections-0.1)
rejecting: template-haskell-2.11.0.0/installed-2.1...,
template-haskell-2.11.0.0, template-haskell-2.10.0.0,
template-haskell-2.9.0.0, template-haskell-2.8.0.0 (conflict:
vector-instances-collections => template-haskell==2.7.*)
rejecting: template-haskell-2.7.0.0 (conflict: base==4.9.0.0/installed-4.9...,
template-haskell => base==4.5.*)
rejecting: template-haskell-2.6.0.0, template-haskell-2.5.0.0,
template-haskell-2.4.0.1, template-haskell-2.4.0.0, template-haskell-2.3.0.1,
template-haskell-2.3.0.0, template-haskell-2.2.0.0 (conflict:
vector-instances-collections => template-haskell==2.7.*)
Dependency tree exhaustively searched.