Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: asn1-data (user goal)
rejecting: asn1-data-0.7.2, asn1-data-0.7.1, asn1-data-0.7.0,
asn1-data-0.6.1.3, asn1-data-0.6.1.2, asn1-data-0.6.1.1, asn1-data-0.6.1,
asn1-data-0.6.0, asn1-data-0.5.1, asn1-data-0.5.0, asn1-data-0.4.6,
asn1-data-0.4.5, asn1-data-0.4.4, asn1-data-0.4.3, asn1-data-0.4.2,
asn1-data-0.4.1, asn1-data-0.4.0, asn1-data-0.3.0, asn1-data-0.2.2,
asn1-data-0.2.1, asn1-data-0.2, asn1-data-0.1.1 (constraint from user target
requires ==0.1)
trying: asn1-data-0.1
next goal: base (dependency of asn1-data-0.1)
rejecting: base-4.9.0.0/installed-4.9... (conflict: asn1-data => base>=3 &&
<4.8)
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.