Running stack ghci on hasktorch directory gives an error.

[noahmartinwilliams]

When I run "stack ghci hasktorch" I get the following error:

/home/noah/src/package-sources/hasktorch/hasktorch/src/Torch/Typed/Tensor.hs:101:16: error:
    • Expected kind ‘dtype’, but ‘Bool’ has kind ‘*’
    • In the first argument of ‘ComputeDType’, namely ‘Bool’
      In the type family declaration for ‘ComputeDType’
    |
101 |   ComputeDType Bool = D.Bool
    |                ^^^^
Failed, 42 modules loaded.

<no location info>: error:
    Could not load module ‘Torch.Distributions.Bernoulli’
    It is a member of the hidden package ‘hasktorch-0.2.0.0’.
    You can run ‘:set -package hasktorch’ to expose it.
    (Note: this unloads all the modules in the current scope.)
Loaded GHCi configuration from /tmp/haskell-stack-ghci/4fb18ce4/ghci-script

[junjihashimoto]

@noahmartinwilliams Which version of ghc version are you using?

[noahmartinwilliams]

9.0.2

[andreasabel]

I am experiencing a more basic error (macOS 12):

$ stack repl examples:exe:autograd
Using main module:
1.  Package examples, component examples:exe:autograd, with main-is file: /Users/abel/bin/src/hasktorch/examples/autograd/Main.hs.

Configuring GHCi with the following packages: examples.
GHCi, version 9.2.8: https://www.haskell.org/ghc/  :? for help
<command line>: cannot satisfy -package z-examples-z-static-mnist
    (use -v for more information)
<<EXITS>>

I see that examples/examples.cabal has an internal library static-mnist, so maybe this is a problem that internal libraries aren't supported so well yet by the Haskell tooling?

This could be:

• stack ghci/repl with internal sublibraries only works after a build commercialhaskell/stack#4148 Note that the last comments on this issue say that stack repl may fail even after stack build has completed.