[Haskell-beginners] Problem installing EclipseFp in Eclipse

[Brent Yorgey]

There's no particular need for SourceGraph and definitely no need for
cabal-dev.  I say try (3).

On Thu, May 01, 2014 at 12:18:05AM +0200, Robert Weisser wrote:
> I decided to try out Eclipse with the EclipseFP plug-in for Haskell.
> I downloaded Eclipse, and then started to install EclipseFP. At
> some point, I got a screen which said that I needed to install
> buildwrapper and scion-browser. It offered to install both
> of them, and optionally install hoogle, hlint, stylish-haskell,
> SourceGraph, and cabal-dev. The option to install the additional
> items was pre-checked. I left it checked. The installation of
> buildwrapper, etc. took a long time. It seemed to be going well
> until I saw the messages below, which say that installing SourceGraph
> will likely break several other packages, most of which were part
> of the EclipseFP installation.
> 
> I am not a complete novice with Haskell but I am a complete novice
> with Cabal. I'm not sure what to do. Here are some options I have
> considered:
> 
> 1. Use --force-reinstalls and hope for the best.
> 
> 2. Try to resolve the problem with Cabal, although I don't know to
> do this.
> 
> 3. Use EclipseFP without SourceGraph and cabal-dev.
> 
> 4. Use EclipseFP without SourceGraph, but install cabal-dev using
> cabal on the command line.
> 
> 5. Forget about Eclipse altogether, and go back to using vim.
> 
> Any advice would be appreciated.
> 
> By the way, I am using Haskell Platform 7.6.3.
> 
> Here are the messages I saw in the Eclipse console window:
> 
> <terminated> Installing executable SourceGraph
> 
> Resolving dependencies...
> In order, the following would be installed:
> asn1-types-0.2.3 (new package)
> asn1-encoding-0.8.1.3 (new package)
> asn1-parse-0.8.1 (new package)
> bktrees-0.3.1 (new package)
> byteable-0.1.1 (new package)
> cereal-0.4.0.1 (new package)
> colour-2.3.3 (new package)
> cpphs-1.18.2 (new version)
> crypto-pubkey-types-0.4.2.2 (new package)
> cryptohash-0.11.4 (new package)
> digest-0.0.1.2 (new package)
> dlist-0.5 (new version)
> aeson-0.7.0.3 (reinstall) changes: dlist-0.7.0.1 -> 0.5
> data-default-instances-dlist-0.0.1 (reinstall) changes: dlist-0.7.0.1 -> 0.5
> data-default-0.5.3 (reinstall)
> cookie-0.4.1.1 (new package)
> haskell-src-exts-1.13.5 (new version)
> hslua-0.3.12 (new package)
> mime-types-0.1.0.4 (new package)
> multiset-0.2.2 (new package)
> pandoc-types-1.12.3.2 (new package)
> pem-0.2.2 (new package)
> polyparse-1.8 (new version)
> publicsuffixlist-0.1 (new package)
> http-client-0.3.2 (new package)
> regex-pcre-builtin-0.94.4.8.8.34 (new package)
> highlighting-kate-0.5.6.1 (new package)
> resourcet-0.4.10.2 (new version)
> securemem-0.1.3 (new package)
> crypto-cipher-types-0.0.9 (new package)
> cipher-aes-0.2.7 (new package)
> cipher-rc4-0.1.4 (new package)
> crypto-random-0.0.7 (new package)
> cprng-aes-0.5.2 (new package)
> crypto-numbers-0.2.3 (new package)
> crypto-pubkey-0.2.4 (new package)
> socks-0.5.4 (new package)
> temporary-1.1.2.5 (new package)
> text-stream-decode-0.1.0.5 (new package)
> conduit-1.0.17.1 (new version)
> http-client-conduit-0.2.0.1 (new package)
> wl-pprint-text-1.1.0.2 (new package)
> graphviz-2999.16.0.0 (new package)
> x509-1.4.11 (new package)
> x509-store-1.4.4 (new package)
> x509-system-1.4.5 (new package)
> x509-validation-1.5.0 (new package)
> tls-1.2.6 (new package)
> connection-0.2.1 (new package)
> http-client-tls-0.2.1.1 (new package)
> http-conduit-2.0.0.10 (new package)
> xml-1.3.13 (new package)
> texmath-0.6.6.1 (new package)
> yaml-0.8.8.2 (reinstall) changes: conduit-1.1.1 -> 1.0.17.1, resourcet-1.1.2
> -> 0.4.10.2
> zip-archive-0.2.2.1 (new package)
> pandoc-1.12.3.3 (new package)
> Graphalyze-0.14.0.2 (new package)
> SourceGraph-0.7.0.5 (new package)
> cabal: The following packages are likely to be broken by the reinstalls:
> stylish-haskell-0.5.10.0
> scion-browser-0.3.1
> persistent-template-1.3.1.3
> persistent-sqlite-1.3.0.5
> persistent-1.3.0.6
> buildwrapper-0.8.0
> dynamic-cabal-0.3.1
> Use --force-reinstalls if you want to install anyway.

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