Re: [Haskell-beginners] Using "cabal test" and getting "cabal: Prelude.read: no parse"

On Tue, May 27, 2014 at 02:47:51PM -0400, Daniel King wrote:

On Tue, May 27, 2014 at 1:45 PM, Brent Yorgey wrote:

...

This seems related, though I don't think it's your problem exactly:

https://github.com/haskell/cabal/issues/1366

I saw that, realized I didn't change directory at all and wasn't really sure how to proceed. It did help me narrow done the cause to something directly in the test suite though.

...

Apparently a "read: no parse" error can be generated when cabal fails to read a log file for some reason. Can you tell us precisely what versions of cabal and ghc you are using (i.e. the output of ghc --version and cabal --version)?

Sure thing:

1 danking@spock # cabal --version cabal-install version 1.20.0.2 using version 1.20.0.0 of the Cabal library

danking@spock # ghc --version The Glorious Glasgow Haskell Compilation System, version 7.6.3

Upon seeing this version information, I tried changing my build-depends to depend on Cabal 1.20 or greater, but I still get the error.

Hmm, I'm not sure then. The people who know the most about the internals of Cabal likely do not read this list; you may have better luck asking on stackoverflow.com and/or in the #hackage channel on Freenode IRC. -Brent