Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: happy-meta (user goal)
rejecting: happy-meta-0.2.0.8, happy-meta-0.2.0.7, happy-meta-0.2.0.6,
happy-meta-0.2.0.5, happy-meta-0.2.0.4, happy-meta-0.2.0.3,
happy-meta-0.2.0.2, happy-meta-0.2.0.1, happy-meta-0.2 (constraint from user
target requires ==0.1.1)
trying: happy-meta-0.1.1
trying: base-4.9.0.0/installed-4.9... (dependency of happy-meta-0.1.1)
next goal: haskell-src-meta (dependency of happy-meta-0.1.1)
rejecting: haskell-src-meta-0.7.0, haskell-src-meta-0.6.0.14,
haskell-src-meta-0.6.0.13, haskell-src-meta-0.6.0.12,
haskell-src-meta-0.6.0.11, haskell-src-meta-0.6.0.10,
haskell-src-meta-0.6.0.9, haskell-src-meta-0.6.0.8, haskell-src-meta-0.6.0.7,
haskell-src-meta-0.6.0.6, haskell-src-meta-0.6.0.5, haskell-src-meta-0.6.0.4,
haskell-src-meta-0.6.0.3, haskell-src-meta-0.6.0.2, haskell-src-meta-0.6.0.1,
haskell-src-meta-0.6, haskell-src-meta-0.5.1.2, haskell-src-meta-0.5.1.1,
haskell-src-meta-0.5.1, haskell-src-meta-0.5.0.3, haskell-src-meta-0.5.0.2,
haskell-src-meta-0.5, haskell-src-meta-0.4.0.2, haskell-src-meta-0.4.0.1,
haskell-src-meta-0.4, haskell-src-meta-0.3, haskell-src-meta-0.2 (conflict:
happy-meta => haskell-src-meta>=0.1.1 && <0.2)
rejecting: haskell-src-meta-0.1.1 (conflict: base==4.9.0.0/installed-4.9...,
haskell-src-meta => base==4.2.*)
rejecting: haskell-src-meta-0.1.0, haskell-src-meta-0.0.6,
haskell-src-meta-0.0.5, haskell-src-meta-0.0.4, haskell-src-meta-0.0.3.1,
haskell-src-meta-0.0.3, haskell-src-meta-0.0.2, haskell-src-meta-0.0.1,
haskell-src-meta-0.0.0 (conflict: happy-meta => haskell-src-meta>=0.1.1 &&
<0.2)
Dependency tree exhaustively searched.