[Haskell-beginners] Beginners Digest, Vol 43, Issue 4

[Gregory Guthrie]

Thanks - I did try a cabal install xxx" for the missing packages, a few seemed to succeed, a few failed, and now I get a longer list of overall failures! :-)

...

There are problems in package scion-0.1.0.9:

  dependency "AttoJson-0.5.10-4932e72997280d8c2e35b4aca3328284" doesn't exist

  dependency "binary-0.5.0.2-72c84eaab351d41e936261d8d5d416f5" doesn't exist

  dependency "list-tries-0.4.1-a2fcbc51b309eb5aade37b40c6ef166e" doesn't exist

There are problems in package bytestring-show-0.3.4:

  dependency "binary-0.5.0.2-72c84eaab351d41e936261d8d5d416f5" doesn't exist

There are problems in package carray-0.1.5:

  dependency "binary-0.5.0.2-72c84eaab351d41e936261d8d5d416f5" doesn't exist

  dependency "ix-shapable-0.1.0-68747ed518a0145d47f8095a08e0bcbb" doesn't exist

...

The following packages are broken, either because they have a problem

listed above, or because they depend on a broken package.

warp-0.4.6.3

tagsoup-0.12.3

simple-sendfile-0.2.0

blaze-builder-enumerator-0.2.0.3

scion-0.1.0.10

aeson-0.3.2.11

hashable-1.1.2.1

blaze-textual-0.2.0.4

double-conversion-0.2.0.1

derive-2.5.4

hoogle-4.2.6

warp-0.4.3

wai-0.4.1

simple-sendfile-0.1.2

http-types-0.6.5.1

case-insensitive-0.3.0.1

blaze-builder-enumerator-0.2.0.2

bmp-1.1.2.1

scion-0.1.0.9

bytestring-show-0.3.4

carray-0.1.5

unordered-containers-0.1.4.2



I tried an install (reinstall?) of the things it lists as missing, and generally they report "already installed". For example;



>cabal install AttoJson

Resolving dependencies...

No packages to be installed. All the requested packages are already installed.

If you want to reinstall anyway then use the --reinstall flag.

      (same for binary, list-tries, ix-shapable, ...)



>ghc --version

The Glorious Glasgow Haskell Compilation System, version 7.0.3



Some things do seem to resolve after a few iterations through re-installations, but others seem stuck, and overall the process seems like a mess.





> What is the remedy (is there a simple remedy?)  if "ghc-pkg check" reports something amiss?

>

> In this case, the simple remedy is to reinstall the packages which the error messages say do

> not exist (blaze-builder, hashable, AttoJson) and then reinstall any packages you want to use

> which depend on them.

>

> -Brent
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