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JeffreyBenjaminBrown / hode

rslt, take five-ish
GNU General Public License v3.0
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Does not build: missing `Fix`. #16

Closed kindaro closed 3 years ago

kindaro commented 3 years ago

When trying to build the project, I am seeing this error:

Hode/Rslt/Show/Util.hs:45:25: error:
    Not in scope: type constructor or class ‘Fix’
   |
45 |   :: forall att. Int -> Fix (ExprFWith att)
   |                         ^^^

— And many of the same further down the road.

Is this a dependency problem?

JeffreyBenjaminBrown commented 3 years ago

Looks like it. Are you using Stack? If so, using one of the two stack.yaml files in stack-options/ should work. If you're not using Stack I'm sure building it is possible but I can't offer advice.

kindaro commented 3 years ago

I am using Cabal. I had to remove Stack recently because I am out of storage space and there can be only one. I am going to look into it but if you can tell me what package Fix is coming from it would make the task much easier for me since it would take the effort of scanning all versions of all dependencies for me to find this out.

JeffreyBenjaminBrown commented 3 years ago

With pleasure :) It's coming from recursion-schemes-5.1.3, which I looked up from the package list for Stackage LTS 16.0. Hopefully if other compatibility problems arise they can be found there too.

Note that VTY and Brick are not included in that snapshot. The stack.yaml files specify which versions of them I'm using, by the commit hash I believe:

extra-deps:
   - brick-0.50@sha256:c06764c6471f982283d68757dbbf6ab6c75a7e86dd9ca93d3abad7e9c89b766a,14378
   - vty-5.26@sha256:7b1aeebff12d9c8ad43fe997ee0e29cd651eff2d5a0aeceeb9df2ee68efe9c53,20307