Resolving dependencies... cabal: Could not resolve dependencies: next goal: xml-enumerator (user goal) rejecting: xml-enumerator-0.4.4.1, 0.4.4, 0.4.3.2, 0.4.3.1, 0.4.2.1, 0.4.2, 0.4.1, 0.4.0, 0.3.4, 0.3.3, 0.3.2, 0.3.1, 0.3.0, 0.2.1.3 (global constraint requires ==0.2.1.2) trying: xml-enumerator-0.2.1.2 trying: blaze-builder-enumerator-0.2.1.0 (dependency of xml-enumerator-0.2.1.2) trying: streaming-commons-0.1.14.2 (dependency of blaze-builder-enumerator-0.2.1.0) next goal: blaze-builder (dependency of xml-enumerator-0.2.1.2) rejecting: blaze-builder-0.4.0.1, 0.4.0.0, 0.3.3.4, 0.3.3.3, 0.3.3.2, 0.3.3.1, 0.3.3.0, 0.3.2.0, 0.3.1.1, 0.3.1.0, 0.3.0.2, 0.3.0.1, 0.3.0.0 (conflict: xml-enumerator => blaze-builder>=0.2 && <0.3) rejecting: blaze-builder-0.2.1.4, 0.2.1.3, 0.2.1.2, 0.2.1.1, 0.2.1.0, 0.2.0.3, 0.2.0.2, 0.2.0.1, 0.2.0.0 (conflict: streaming-commons => blaze-builder>=0.3 && <0.5) rejecting: blaze-builder-0.1 (conflict: xml-enumerator => blaze-builder>=0.2 && <0.3) Dependency tree exhaustively searched.