Am Samstag 01 Mai 2010 19:06:33 schrieb Warren Harris:
On May 1, 2010, at 3:39 AM, Daniel Fischer wrote:
Try
$ cabal install --constraint="Crypto<4.2.1" -- constraint="HJScript<0.5" happs-tutorial
This had the same problem building containers:
Building containers-0.2.0.1...
Data/IntMap.hs:182:7: Could not find module `Data.Data': It is a member of the hidden package `base'. Perhaps you need to add `base' to the build-depends in your .cabal file. Use -v to see a list of the files searched for. cabal: Error: some packages failed to install:
That's a slightly misleading error message. containers-0.2.0.1 lists base as one of its build-dependencies, but without version constraints. So cabal-install chooses base-3.* as the version for base, which doesn't have Data.Data. Data.Data first appears in base-4.0.0.0, so Data.Data is a member of the hidden package base-4.*. Add a --constraint="base>=4" That should fix containers-0.2.0.1, but it might break something else. Or try again with the darcs version.
On May 1, 2010, at 6:24 AM, Jeremy Shaw wrote:
I would recommend:
darcs get --lazy http://patch-tag.com/r/mae/happstack cd happstack chmod +x bin/build-install-all.sh ./bin/build-install-all.sh
This should install the latest version of happstack from darcs which resolves most install problems. I intend to release it any minute now, but I am waiting for a patch to hsp.cabal to be applied.
This had a different problem building happstack itself:
Building happstack-0.4.3... trhsx: Error at SrcLoc {srcFilename = "src/HSP/IdentityT.hs", srcLine = 73, srcColumn = 1}: Illegal instance declaration cabal: Error: some packages failed to install: happstack-0.4.3 failed during the building phase. The exception was: ExitFailure 1
I can't see anything that looks obviously wrong with line 73 of that file, but haven't studied it in detail.
Maybe a missing {-# LANGUAGE FlexibleInstances #-} (or TypeSynonymInstances)?
Warren