yst.cabal is out of date, as it's no longer possible to install via "cabal install yst". about yst HOT 4 CLOSED

You could try installing in a sandbox (assuming a relatively
recent cabal):

cabal sandbox init
cabal install

Alternatively, if you don't have lots of other Haskell stuff
you use, you could remove the ~/.ghc directory and try
again.

I don't see any evident problems with yst.cabal.

+++ Aleksandar Mićović [Feb 18 15 14:17 ]:

Unfortunately, I don't know much about Haskell to help with this, but I
figured it'd be good idea to give a heads up.
$ cabal install yst
Resolving dependencies...
cabal: Could not resolve dependencies:
trying: yst-0.4.1.1 (user goal)
trying: HDBC-sqlite3-2.3.3.0 (dependency of yst-0.4.1.1)
trying: mtl-2.1.3.1/installed-96f... (dependency of HDBC-sqlite3-2.3.3.0)
trying: pandoc-1.13.2 (dependency of yst-0.4.1.1)
trying: temporary-1.2.0.3 (dependency of pandoc-1.13.2)
trying: exceptions-0.8 (dependency of temporary-1.2.0.3)
trying: transformers-compat-0.4.0.4 (dependency of exceptions-0.8)
trying: transformers-compat-0.4.0.4:-two
rejecting: transformers-compat-0.4.0.4:-three (conflict: mtl =>
transformers==0.3.0.0/installed-645..., transformers-compat-0.4.0.4:three =>
transformers>=0.4.1 && <0.5)
rejecting: transformers-compat-0.4.0.4:+three (manual flag can only be changed
explicitly)
Backjump limit reached (change with --max-backjumps).

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References

1. #39

from yst.

Hey, thanks for the answer! So, none of that works out of the box, and neither does setting the max backjumps to something ridiculously high like 10,000. However, running,

$ cabal install yst --max-backjumps=-1 --reorder-goals

managed to find a dependency solution after running for nearly 4 hours on my machine.

I'll go ahead and close this ticket now, as it's inaccurate. Thanks for suggestions.

from yst.

I didn't have any problems installing here, probably because
I have older versions of some packages installed. If you don't
mind posting the output of ghc-pkg list, that might help
debug if similar issues come up for others.

+++ Aleksandar Mićović [Feb 19 15 06:48 ]:

Hey, thanks for the answer! So, none of that works out of the box, and
neither does setting the max backjumps to something ridiculously high
like 10,000. However, running,

$ cabal install yst --max-backjumps=-1 --reorder-goals

managed to find a dependency solution after running for nearly 4 hours
on my machine.

I'll go ahead and close this ticket now, as it's inaccurate. Thanks for
suggestions.

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References

1. #39 (comment)

from yst.

Sure thing. For future reference for anyone stumbling upon this same problem:

$ ghc-pkg list
/usr/local/Cellar/ghc/7.8.4/lib/ghc-7.8.4/package.conf.d
   Cabal-1.18.1.5
   array-0.5.0.0
   base-4.7.0.2
   bin-package-db-0.0.0.0
   binary-0.7.1.0
   bytestring-0.10.4.0
   containers-0.5.5.1
   deepseq-1.3.0.2
   directory-1.2.1.0
   filepath-1.3.0.2
   ghc-7.8.4
   ghc-prim-0.3.1.0
   haskeline-0.7.1.2
   haskell2010-1.1.2.0
   haskell98-2.0.0.3
   hoopl-3.10.0.1
   hpc-0.6.0.1
   integer-gmp-0.5.1.0
   old-locale-1.0.0.6
   old-time-1.1.0.2
   pretty-1.1.1.1
   process-1.2.0.0
   rts-1.0
   template-haskell-2.9.0.0
   terminfo-0.4.0.0
   time-1.4.2
   transformers-0.3.0.0
   unix-2.7.0.1
   xhtml-3000.2.1

from yst.