[Haskell-beginners] Problem installing EclipseFp in Eclipse

Robert Weisser Robert.Weisser at gmx.com
Wed Apr 30 22:18:05 UTC 2014

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

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- (new package)
asn1-parse-0.8.1 (new package)
bktrees-0.3.1 (new package)
byteable-0.1.1 (new package)
cereal- (new package)
colour-2.3.3 (new package)
cpphs-1.18.2 (new version)
crypto-pubkey-types- (new package)
cryptohash-0.11.4 (new package)
digest- (new package)
dlist-0.5 (new version)
aeson- (reinstall) changes: dlist- -> 0.5
data-default-instances-dlist-0.0.1 (reinstall) changes: dlist- -> 0.5
data-default-0.5.3 (reinstall)
cookie- (new package)
haskell-src-exts-1.13.5 (new version)
hslua-0.3.12 (new package)
mime-types- (new package)
multiset-0.2.2 (new package)
pandoc-types- (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- (new package)
highlighting-kate- (new package)
resourcet- (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- (new package)
text-stream-decode- (new package)
conduit- (new version)
http-client-conduit- (new package)
wl-pprint-text- (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- (new package)
http-conduit- (new package)
xml-1.3.13 (new package)
texmath- (new package)
yaml- (reinstall) changes: conduit-1.1.1 ->, resourcet-1.1.2
zip-archive- (new package)
pandoc- (new package)
Graphalyze- (new package)
SourceGraph- (new package)
cabal: The following packages are likely to be broken by the reinstalls:
Use --force-reinstalls if you want to install anyway.
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