Resolving dependencies...
cabal: Could not resolve dependencies:
[__0] trying: casr-logbook-0.6.2 (user goal)
[__1] next goal: digit (dependency of casr-logbook)
[__1] rejecting: digit-0.11 (conflict: casr-logbook => digit>=0.8 && <0.9)
[__1] skipping: digit-0.10, digit-0.9 (has the same characteristics that
caused the previous version to fail: excluded by constraint '>=0.8 && <0.9'
from 'casr-logbook')
[__1] trying: digit-0.8
[__2] next goal: base (dependency of casr-logbook)
[__2] rejecting: base-4.14.1.0/installed-4.14.1.0 (conflict: digit =>
base>=4.8 && <4.13)
[__2] skipping: base-4.16.0.0, base-4.15.1.0, base-4.15.0.0, base-4.14.3.0,
base-4.14.2.0, base-4.14.1.0, base-4.14.0.0, base-4.13.0.0 (has the same
characteristics that caused the previous version to fail: excluded by
constraint '>=4.8 && <4.13' from 'digit')
[__2] rejecting: base-4.12.0.0, base-4.11.1.0, base-4.11.0.0, base-4.10.1.0,
base-4.10.0.0, base-4.9.1.0, 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)
[__2] fail (backjumping, conflict set: base, casr-logbook, digit)
After searching the rest of the dependency tree exhaustively, these were the
goals I've had most trouble fulfilling: casr-logbook, base, digit