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+# Installation issues
+This page describes common GPy installation issues and their solutions. If you solve a new installation issue, please record it here.
+
+## How to install
+Typically, you'll install GPy using [`pip`](https://pypi.org/project/pip/) via the following command: `pip install GPy`.
+
+## Common issues
+
+### `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 GPy && pip install GPy`.
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