Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: gi-javascriptcore (user goal)
rejecting: gi-javascriptcore-4.0.6, gi-javascriptcore-4.0.5,
gi-javascriptcore-4.0.4, gi-javascriptcore-4.0.3, gi-javascriptcore-4.0.2,
gi-javascriptcore-4.0.1, gi-javascriptcore-3.0.6, gi-javascriptcore-3.0.5,
gi-javascriptcore-3.0.4, gi-javascriptcore-3.0.3, gi-javascriptcore-3.0.2,
gi-javascriptcore-3.0.1, gi-javascriptcore-0.2.12.15,
gi-javascriptcore-0.2.12.14, gi-javascriptcore-0.2.10.13,
gi-javascriptcore-0.2.10.12 (constraint from user target requires ==0.2.10.10)
rejecting: gi-javascriptcore-0.2.10.10 (conflict: requires pkg-config package
javascriptcoregtk-4.0>=2.10, not found in the pkg-config database)
rejecting: gi-javascriptcore-0.2.8.12, gi-javascriptcore-0.2.8.11,
gi-javascriptcore-0.2.4.15, gi-javascriptcore-0.2.4.14,
gi-javascriptcore-0.2.4.13, gi-javascriptcore-0.2.4.12,
gi-javascriptcore-0.2.4.11, gi-javascriptcore-0.2.4.10,
gi-javascriptcore-0.2.4.9, gi-javascriptcore-0.2.4.8 (constraint from user
target requires ==0.2.10.10)
Dependency tree exhaustively searched.