Resolving dependencies... cabal: Could not resolve dependencies: next goal: happstack-hstringtemplate (user goal) rejecting: happstack-hstringtemplate-7.0.4, 7.0.3, 7.0.2, 7.0.1, 7.0.0, 6.0.5 (global constraint requires ==6.0.4) trying: happstack-hstringtemplate-6.0.4 next goal: HStringTemplate (dependency of happstack-hstringtemplate-6.0.4) rejecting: HStringTemplate-0.8.3, 0.8.2, 0.8.1, 0.8, 0.7.3, 0.7.1, 0.7.0 (conflict: happstack-hstringtemplate => HStringTemplate>=0.4.3 && <0.7) trying: HStringTemplate-0.6.12 trying: text-1.2.1.3 (dependency of HStringTemplate-0.6.12) next goal: happstack-server (dependency of happstack-hstringtemplate-6.0.4) rejecting: happstack-server-7.4.5, 7.4.4, 7.4.3, 7.4.2, 7.4.1, 7.4.0, 7.3.9, 7.3.8, 7.3.7, 7.3.6, 7.3.5, 7.3.4, 7.3.3, 7.3.2, 7.3.1, 7.3.0, 7.1.7.1, 7.1.7, 7.1.6, 7.1.5, 7.1.4, 7.1.3, 7.1.2, 7.1.1, 7.1.0, 7.0.7, 7.0.6, 7.0.5, 7.0.4, 7.0.3, 7.0.2, 7.0.1, 7.0.0, 6.6.5, 6.6.4, 6.6.3, 6.6.2 (conflict: happstack-hstringtemplate => happstack-server>=6.0 && <6.6) rejecting: happstack-server-6.5.7, 6.5.6, 6.5.4, 6.5.3, 6.5.2, 6.5.1, 6.4.6, 6.4.5, 6.4.4, 6.4.3, 6.4.2, 6.4.1, 6.3.1, 6.2.5, 6.2.4, 6.2.3, 6.2.2, 6.2.1, 6.1.6, 6.1.5, 6.1.4, 6.1.3, 6.1.2, 6.1.0, 6.0.3, 6.0.2, 6.0.1, 6.0.0 (conflict: text==1.2.1.3, happstack-server => text>=0.10 && <0.12) rejecting: happstack-server-0.5.0.4, 0.5.0.3, 0.5.0.2, 0.5.0, 0.4.1, 0.3.3, 0.3.2, 0.3.1, 0.2.1, 0.1 (conflict: happstack-hstringtemplate => happstack-server>=6.0 && <6.6) Backjump limit reached (change with --max-backjumps).