Oh, I was assuming you already had a version of 'network' installed that came with the Haskell Platform - the platform comes with: network-2.3.0.13 HTTP-4000.2.3 So I assumed they were being installed again because of the flag. Really, the platform comes with everything that cabal-dev depends on, so it might be easier to solve whatever error message you're getting without the '--force' flag. Antoine On Thu, Aug 16, 2012 at 9:30 PM, Gregory Guthrie wrote:

Yes, because a simple "cabal install" failed, and said the only way to do it was to force-installs.

But if this is a dependency, wouldn't it be requires (or not) either way?

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-----Original Message-----

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Trying to bootstrap into cabal-dev seems to require some external installations as well;

>>cabal install cabal-dev --force-reinstalls

Maybe I'm missing some context, but is there a reason you're using the "--fore-reinstalls" flag? If you didn't pass that then 'cabal' maybe would not try to re-install the 'network' package and you wouldn't run into this.

On Thu, Aug 16, 2012 at 9:43 PM, Brandon Allbery wrote:

On Thu, Aug 16, 2012 at 10:36 PM, Antoine Latter wrote:

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Really, the platform comes with everything that cabal-dev depends on, so it might be easier to solve whatever error message you're getting without the '--force' flag.

Unfortunately I'm seeing the same thing, but on OS X (Lion): "cabal install cabal-dev", with no local packages, wants to reinstall/break a bunch of Platform libraries.

Ug. I have a weird franken-install on my end, so "cabal install cabal-dev" (or even just a "cabal unpack" "cabal configure") works cleanly for me. Maybe you could file a ticket with "cabal-dev" to ask what you need to do to install on a fresh platform install, or ask on haskell-cafe. Can you try upgrading "cabal-install" to see if the new solver handles it better? I think the new version works with what is in the platform. If you also get errors there might be ways to make it go ... Antoine

-- brandon s allbery allbery.b@gmail.com wandering unix systems administrator (available) (412) 475-9364 vm/sms

Here was my first try to install cabal-dev (to follow advice to vacate cabal install); C:\Users\ haskell >cabal install cabal-dev Resolving dependencies... In order, the following would be installed: tar-0.3.2.0 (new package) transformers-0.2.2.0 (reinstall) changes: base-4.3.1.0 -> 4.5.0.0 mtl-2.0.1.0 (reinstall) changes: base-4.3.1.0 -> 4.5.0.0 parsec-3.1.3 (reinstall) changes: mtl-2.1.2 -> 2.0.1.0 network-2.3.0.14 (new version) HTTP-4000.2.3 (reinstall) changes: mtl-2.1.1 -> 2.0.1.0, network-2.3.0.13 -> 2.3.0.14, parsec-3.1.2 -> 3.1.3 cabal-dev-0.9.1 (new package) cabal: The following packages are likely to be broken by the reinstalls: regex-base-0.93.2 regex-posix-0.95.1 regex-compat-0.95.1 haskell-platform-2011.3.0.0 regex-posix-0.94.4 regex-compat-0.93.1 haskell-platform-2011.2.0.1 parsec-3.1.1 network-2.3.0.5 cgi-3001.1.7.4 HTTP-4000.1.2 network-2.3.0.2 vcgi-3001.1.7.4 HTTP-4000.1.1 fgl-5.4.2.4 fgl-5.4.2.3 QuickCheck-2.4.0.1 haskell-platform-2012.2.0.0 Use --force-reinstalls if you want to install anyway. The force resultted in the previously reported error - Configuring network-2.3.0.14... cabal: The package has a './configure' script. This requires a Unix compatibility toolchain such as MinGW+MSYS or Cygwin. cabal: Error: some packages failed to install: HTTP-4000.2.3 depends on network-2.3.0.14 which failed to install. cabal-dev-0.9.1 depends on network-2.3.0.14 which failed to install. network-2.3.0.14 failed during the configure step. The exception was: ExitFailure 1 Now after the attempt to do the force (which was advised earlier to resolve package shadowing problems left over from cabal-install's), C:\Users\haskell>cabal install cabal-dev Resolving dependencies... In order, the following would be installed: network-2.3.0.14 (new version) HTTP-4000.2.3 (reinstall) changes: mtl-2.1.1 -> 2.0.1.0, network-2.3.0.13 -> 2.3.0.14, parsec-3.1.2 -> 3.1.3 cabal-dev-0.9.1 (new package) cabal: The following packages are likely to be broken by the reinstalls: haskell-platform-2012.2.0.0 Use --force-reinstalls if you want to install anyway. And yes, I do have network installed;

network-2.3.0.13

-----Original Message----- Oh, I was assuming you already had a version of 'network' installed that came with the Haskell Platform - the platform comes with:

network-2.3.0.13 HTTP-4000.2.3

So I assumed they were being installed again because of the flag.

Really, the platform comes with everything that cabal-dev depends on, so it might be easier to solve whatever error message you're getting without the '--force' flag.