Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: gi-webkit2webextension (user goal)
rejecting: gi-webkit2webextension-4.0.6, gi-webkit2webextension-4.0.5,
gi-webkit2webextension-4.0.4, gi-webkit2webextension-4.0.3,
gi-webkit2webextension-4.0.2, gi-webkit2webextension-4.0.1,
gi-webkit2webextension-0.2.12.15, gi-webkit2webextension-0.2.12.14,
gi-webkit2webextension-0.2.10.13, gi-webkit2webextension-0.2.10.12 (constraint
from user target requires ==0.2.8.12)
rejecting: gi-webkit2webextension-0.2.8.12 (conflict: requires pkg-config
package webkit2gtk-web-extension-4.0>=2.8, not found in the pkg-config
database)
Dependency tree exhaustively searched.