Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: tttool (user goal)
rejecting: tttool-1.6.1.3, tttool-1.6.1.2, tttool-1.6.1.1 (constraint from
user target requires ==1.6.1)
trying: tttool-1.6.1
trying: base-4.9.0.0/installed-4.9... (dependency of tttool-1.6.1)
trying: yaml-0.8.20 (dependency of tttool-1.6.1)
next goal: template-haskell (dependency of tttool-1.6.1)
rejecting: template-haskell-2.11.0.0/installed-2.1...,
template-haskell-2.11.0.0 (conflict: tttool => template-haskell>=2.7 && <2.11)
rejecting: template-haskell-2.10.0.0 (conflict:
base==4.9.0.0/installed-4.9..., template-haskell => base==4.8.*)
rejecting: template-haskell-2.9.0.0 (conflict: base==4.9.0.0/installed-4.9...,
template-haskell => base==4.7.*)
rejecting: template-haskell-2.8.0.0 (conflict: base==4.9.0.0/installed-4.9...,
template-haskell => base==4.6.*)
rejecting: template-haskell-2.7.0.0 (conflict: yaml =>
template-haskell>=2.8.0.0)
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: tttool =>
template-haskell>=2.7 && <2.11)
Dependency tree exhaustively searched.