Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: HsOpenSSL (user goal)
rejecting: HsOpenSSL-0.11.3.2, HsOpenSSL-0.11.3.1, HsOpenSSL-0.11.3,
HsOpenSSL-0.11.2.4, HsOpenSSL-0.11.2.3, HsOpenSSL-0.11.2.2,
HsOpenSSL-0.11.2.1, HsOpenSSL-0.11.2, HsOpenSSL-0.11.1.1, HsOpenSSL-0.11.1,
HsOpenSSL-0.11, HsOpenSSL-0.10.5, HsOpenSSL-0.10.4, HsOpenSSL-0.10.3.6,
HsOpenSSL-0.10.3.5, HsOpenSSL-0.10.3.4, HsOpenSSL-0.10.3.3,
HsOpenSSL-0.10.3.2, HsOpenSSL-0.10.3.1, HsOpenSSL-0.10.3, HsOpenSSL-0.10.2.1,
HsOpenSSL-0.10.2, HsOpenSSL-0.10.1.4, HsOpenSSL-0.10.1.3, HsOpenSSL-0.10.1.2,
HsOpenSSL-0.10.1.1, HsOpenSSL-0.10.1, HsOpenSSL-0.10, HsOpenSSL-0.9.0.1,
HsOpenSSL-0.9, HsOpenSSL-0.8.0.2, HsOpenSSL-0.8.0.1, HsOpenSSL-0.8,
HsOpenSSL-0.7, HsOpenSSL-0.6.5, HsOpenSSL-0.6.4, HsOpenSSL-0.6.3,
HsOpenSSL-0.6.2, HsOpenSSL-0.6.1, HsOpenSSL-0.6, HsOpenSSL-0.5.2,
HsOpenSSL-0.5.1, HsOpenSSL-0.5, HsOpenSSL-0.4.2, HsOpenSSL-0.4.1 (constraint
from user target requires ==0.4)
trying: HsOpenSSL-0.4
next goal: base (dependency of HsOpenSSL-0.4)
rejecting: base-4.9.0.0/installed-4.9... (conflict: HsOpenSSL => base>=3 &&
<4.3 || <3)
rejecting: 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)
Dependency tree exhaustively searched.