elm-server currently doesn't install on arch due to attoparsec

[elm-lang]

elm-server currently doesn't install on arch due to attoparsec

[evancz]

Try this:

cabal install elm --constraint="aeson<0.7.0.5" --constraint="attoparsec<0.11.3.1"

[martindemello]

$ cabal install elm --constraint="aeson<0.7.0.5" --constraint="attoparsec<0.11.3.1"
Resolving dependencies...
In order, the following will be installed:
attoparsec-0.11.3.0 (latest: 0.11.3.4) (reinstall) changes: scientific-0.2.0.2
added, text-1.1.1.1 -> 1.1.1.2
aeson-0.7.0.4 (latest: 0.7.0.6) +new-bytestring-builder (reinstall) changes:
attoparsec-0.11.3.1 -> 0.11.3.0
aeson-pretty-0.7.1 (reinstall) changes: attoparsec-0.11.3.0 added,
cmdargs-0.10.7 added
pandoc-types-1.12.3.3 (reinstall)
texmath-0.6.6.1 (reinstall)
yaml-0.8.8.2 (reinstall) changes: attoparsec-0.11.3.1 -> 0.11.3.0
pandoc-1.12.4.2 (reinstall) changes: aeson-0.7.0.6 -> 0.7.0.4,
attoparsec-0.11.3.4 -> 0.11.3.0, old-time-1.1.0.2 added, scientific-0.3.2.0 ->
0.2.0.2
Elm-0.12.1.3 (new package)
Warning: Note that reinstalls are always dangerous. Continuing anyway...
Downloading attoparsec-0.11.3.0...
Configuring attoparsec-0.11.3.0...
Building attoparsec-0.11.3.0...
Failed to install attoparsec-0.11.3.0
Last 10 lines of the build log ( /home/martin/.cabal/logs/attoparsec-0.11.3.0.log ):
Building attoparsec-0.11.3.0...
Preprocessing library attoparsec-0.11.3.0...

Data/Attoparsec/ByteString/Char8.hs:117:18:
    Could not find module ‘Data.Scientific’
    There are files missing in the ‘scientific-0.2.0.2’ package,
    try running 'ghc-pkg check'.
    Use -v to see a list of the files searched for.
cabal: Error: some packages failed to install:
Elm-0.12.1.3 depends on attoparsec-0.11.3.0 which failed to install.
aeson-0.7.0.4 depends on attoparsec-0.11.3.0 which failed to install.
aeson-pretty-0.7.1 depends on attoparsec-0.11.3.0 which failed to install.
attoparsec-0.11.3.0 failed during the building phase. The exception was:
ExitFailure 1
pandoc-1.12.4.2 depends on attoparsec-0.11.3.0 which failed to install.
pandoc-types-1.12.3.3 depends on attoparsec-0.11.3.0 which failed to install.
texmath-0.6.6.1 depends on attoparsec-0.11.3.0 which failed to install.
yaml-0.8.8.2 depends on attoparsec-0.11.3.0 which failed to install.
martin@mercury ~
$ cabal install scientific
Resolving dependencies...
All the requested packages are already installed:
scientific-0.3.2.0
Use --reinstall if you want to reinstall anyway.
martin@mercury ~
$

[martindemello]

(i don't really mind if i can't install via cabal, since i just ended up just installing it via a cabal sandbox, but it would be nice to have the system package working)

[evancz]

elm-server no longer exists