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Per https://github.com/SheffieldML/GPy/issues/977#issuecomment-1100912510

Max Schrader 2022-04-17 15:32:20 -05:00
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Installation-issues.md

@ -6,4 +6,9 @@ Typically, you'll install GPy using [`pip`](https://pypi.org/project/pip/) via t
## Common issues ## Common issues
### `ValueError: numpy.ndarray size changed, ...` ### `ValueError: numpy.ndarray size changed, ...`
The full text of the error is `ValueError: numpy.ndarray size changed, may indicate binary incompatibility. Expected 88 from C header, got 80 from PyObject`. A full traceback is available in [#924](https://github.com/SheffieldML/GPy/issues/924). This issue is caused by an incompatible numpy installation and is solved by running `pip uninstall numpy && pip install numpy`. Then, you should be able to run `pip install GPy` without seeing the same `ValueError`. The full text of the error is `ValueError: numpy.ndarray size changed, may indicate binary incompatibility. Expected 88 from C header, got 80 from PyObject`. A full traceback is available in [#924](https://github.com/SheffieldML/GPy/issues/924). This issue is caused by an incompatible numpy installation and is solved by running `pip uninstall numpy && pip install numpy`. Then, you should be able to run `pip install GPy` without seeing the same `ValueError`.
### Hanging Import
An issue in matplotlib pyplot has been reported by one user to cause a "hanging" `import gpy` on Ubunutu. This [StackOverflow](https://stackoverflow.com/questions/17490444/import-matplotlib-pyplot-hangs) post further explains the `matplotlib.pyplot` behavior.