Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: language-c-quote (user goal)
rejecting: language-c-quote-0.11.7.1, language-c-quote-0.11.7,
language-c-quote-0.11.6.3, language-c-quote-0.11.6.2,
language-c-quote-0.11.6.1, language-c-quote-0.11.6, language-c-quote-0.11.5.1,
language-c-quote-0.11.5, language-c-quote-0.11.4.1, language-c-quote-0.11.4,
language-c-quote-0.11.3, language-c-quote-0.11.2.1, language-c-quote-0.11.2,
language-c-quote-0.11.1, language-c-quote-0.11.0.1, language-c-quote-0.11,
language-c-quote-0.10.2.3, language-c-quote-0.10.2.2,
language-c-quote-0.10.2.1, language-c-quote-0.10.2, language-c-quote-0.10.1.3,
language-c-quote-0.10.1.2, language-c-quote-0.10.1.1, language-c-quote-0.10.1,
language-c-quote-0.10.0 (constraint from user target requires ==0.9.0)
trying: language-c-quote-0.9.0
trying: transformers-0.5.2.0/installed-0.5... (dependency of mtl-2.2.1)
next goal: exception-transformers (dependency of language-c-quote-0.9.0)
rejecting: exception-transformers-0.4.0.5, exception-transformers-0.4.0.4,
exception-transformers-0.4.0.3, exception-transformers-0.4.0.2,
exception-transformers-0.4.0.1, exception-transformers-0.4 (conflict:
language-c-quote => exception-transformers>=0.3 && <0.4)
rejecting: exception-transformers-0.3.0.4 (conflict:
transformers==0.5.2.0/installed-0.5..., exception-transformers =>
transformers>=0.2 && <0.5)
rejecting: exception-transformers-0.3.0.3, exception-transformers-0.3.0.2
(conflict: transformers==0.5.2.0/installed-0.5..., exception-transformers =>
transformers>=0.2 && <0.4)
rejecting: exception-transformers-0.3.0.1, exception-transformers-0.3
(conflict: transformers==0.5.2.0/installed-0.5..., exception-transformers =>
transformers>=0.2 && <0.3)
rejecting: exception-transformers-0.2 (conflict: language-c-quote =>
exception-transformers>=0.3 && <0.4)
Dependency tree exhaustively searched.