Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: yesod (user goal)
rejecting: yesod-1.4.3.1, yesod-1.4.3, yesod-1.4.2.1, yesod-1.4.2,
yesod-1.4.1.5, yesod-1.4.1.4, yesod-1.4.1.3, yesod-1.4.1.2, yesod-1.4.1.1,
yesod-1.4.1, yesod-1.4.0, yesod-1.2.6.1, yesod-1.2.6, yesod-1.2.5.3,
yesod-1.2.5.2, yesod-1.2.5.1, yesod-1.2.5, yesod-1.2.4, yesod-1.2.3,
yesod-1.2.2.1, yesod-1.2.2, yesod-1.2.1.1, yesod-1.2.1, yesod-1.2.0.1,
yesod-1.2.0, yesod-1.1.9.4, yesod-1.1.9.3, yesod-1.1.9.2, yesod-1.1.9.1,
yesod-1.1.9, yesod-1.1.8.2, yesod-1.1.8.1, yesod-1.1.8, yesod-1.1.7.2,
yesod-1.1.7.1, yesod-1.1.7, yesod-1.1.6, yesod-1.1.5, yesod-1.1.4.1,
yesod-1.1.4, yesod-1.1.3.1, yesod-1.1.3, yesod-1.1.2, yesod-1.1.1.2,
yesod-1.1.1 (constraint from user target requires ==1.1.0.3)
trying: yesod-1.1.0.3
trying: array-0.5.1.1/installed-0.5... (dependency of stm-2.4.4.1)
trying: binary-0.8.3.0/installed-0.8... (dependency of scientific-0.3.4.9)
next goal: http-types (dependency of yesod-1.1.0.3)
rejecting: http-types-0.9.1, http-types-0.9, http-types-0.8.6,
http-types-0.8.5, http-types-0.8.4, http-types-0.8.3, http-types-0.8.2,
http-types-0.8.1, http-types-0.8.0 (conflict: yesod => http-types>=0.7 &&
<0.8)
rejecting: http-types-0.7.3.0.1, http-types-0.7.3 (conflict:
array==0.5.1.1/installed-0.5..., http-types => array>=0.2 && <0.5)
rejecting: http-types-0.7.2, http-types-0.7.1, http-types-0.7.0 (conflict:
binary => bytestring==0.10.8.1/installed-0.1..., http-types =>
bytestring>=0.9.1.5 && <0.10)
rejecting: http-types-0.6.11, http-types-0.6.10, http-types-0.6.9,
http-types-0.6.8, http-types-0.6.7, http-types-0.6.6, http-types-0.6.5.1,
http-types-0.6.5, http-types-0.6.4, http-types-0.6.3, http-types-0.6.2,
http-types-0.6.1, http-types-0.6.0.1, http-types-0.6.0, http-types-0.5.3,
http-types-0.5.2, http-types-0.5.1, http-types-0.5, http-types-0.4.1,
http-types-0.4.0, http-types-0.3.1, http-types-0.3.0, http-types-0.2.0,
http-types-0.1.1, http-types-0.1 (conflict: yesod => http-types>=0.7 && <0.8)
Backjump limit reached (currently 2000, change with --max-backjumps or try to
run with --reorder-goals).