Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: mathblog (user goal)
rejecting: mathblog-0.6, 0.5, 0.4, 0.3 (global constraint requires ==0.2)
trying: mathblog-0.2
trying: base-4.8.1.0/installed-4f7... (dependency of mathblog-0.2)
next goal: ConfigFile (dependency of mathblog-0.2)
rejecting: ConfigFile-1.1.4, 1.1.3, 1.1.2, 1.1.1, 1.1.0 (conflict: mathblog =>
ConfigFile>=1.0 && <1.1)
trying: ConfigFile-1.0.6
trying: containers-0.5.6.2/installed-2de... (dependency of ConfigFile-1.0.6)
next goal: haskell98 (dependency of ConfigFile-1.0.6)
rejecting: haskell98-2.0.0.3 (conflict: base==4.8.1.0/installed-4f7...,
haskell98 => base>=4.7 && <4.8)
rejecting: haskell98-2.0.0.2 (conflict: base==4.8.1.0/installed-4f7...,
haskell98 => base==4.6.*)
rejecting: haskell98-2.0.0.1 (conflict: containers =>
array==0.5.1.0/installed-d42..., haskell98 => array>=0.3 && <0.5)
rejecting: haskell98-2.0.0.0 (conflict: containers =>
array==0.5.1.0/installed-d42..., haskell98 => array>=0.3 && <0.4)
rejecting: haskell98-1.1.0.1, 1.1.0.0, 1.0.1.1 (conflict:
base==4.8.1.0/installed-4f7..., haskell98 => base>=3 && <4.6)
rejecting: haskell98-1.0.1.0 (conflict: base==4.8.1.0/installed-4f7...,
haskell98 => base<4.6)
rejecting: haskell98-1.0 (conflict: base==4.8.1.0/installed-4f7..., haskell98
=> base<4.3)
Backjump limit reached (change with --max-backjumps).