Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: hdevtools (user goal)
rejecting: hdevtools-0.1.4.1, hdevtools-0.1.4.0, hdevtools-0.1.3.2,
hdevtools-0.1.3.1, hdevtools-0.1.3.0, hdevtools-0.1.2.2 (constraint from user
target requires ==0.1.2.1)
trying: hdevtools-0.1.2.1
next goal: bin-package-db (dependency of hdevtools-0.1.2.1)
Dependency tree exhaustively searched.