Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: HDBC-mysql (user goal)
rejecting: HDBC-mysql-0.7.1.0, HDBC-mysql-0.7.0.0, HDBC-mysql-0.6.6.4
(constraint from user target requires ==0.6.6.3)
trying: HDBC-mysql-0.6.6.3
next goal: base (dependency of HDBC-mysql-0.6.6.3)
rejecting: base-4.9.0.0/installed-4.9... (conflict: HDBC-mysql => base>=2 &&
<4.9)
rejecting: base-4.9.0.0, base-4.8.2.0, base-4.8.1.0, base-4.8.0.0,
base-4.7.0.2, base-4.7.0.1, base-4.7.0.0, base-4.6.0.1, base-4.6.0.0,
base-4.5.1.0, base-4.5.0.0, base-4.4.1.0, base-4.4.0.0, base-4.3.1.0,
base-4.3.0.0, base-4.2.0.2, base-4.2.0.1, base-4.2.0.0, base-4.1.0.0,
base-4.0.0.0, base-3.0.3.2, base-3.0.3.1 (constraint from non-upgradeable
package requires installed instance)
Dependency tree exhaustively searched.