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Add info about lightgbm issue on MacOS in dev environment docs #1186

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Jun 20, 2023
Merged

Add info about lightgbm issue on MacOS in dev environment docs #1186

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Add info about lightgbm issue on MacOS in dev environment docs
mattbit Jun 20, 2023
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Merge branch 'main' into task/dev-docs-segfault
mattbit Jun 20, 2023
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Merge branch 'main' into task/dev-docs-segfault
mattbit Jun 20, 2023
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15 changes: 14 additions & 1 deletion python-client/docs/contribute/dev-environment.md
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Expand Up @@ -12,4 +12,17 @@ To install it run:
```shell
brew install pre-commit
pre-commit install
```
```


## Troubleshooting

### `Fatal Python error: segmentation fault` when running `pytest` on MacOS

This is probably caused by a [known issue](https://github.com/microsoft/LightGBM/issues/4707) with `libomp>=12` and LightGBM on MacOS.
You can avoid this problem by downgrading `libomp` to version 11.1.0, which is compatible with LightGBM.

```sh
$ wget https://raw.githubusercontent.com/Homebrew/homebrew-core/fb8323f2b170bd4ae97e1bac9bf3e2983af3fdb0/Formula/libomp.rb
$ brew install ./libomp.rb
```