cannot import name 'plot_confusion_matrix' from 'sklearn.metrics'

The error message "cannot import name 'plot_confusion_matrix' from 'sklearn.metrics'" usually occurs when you are trying to use the "plot_confusion_matrix" function from the "sklearn.metrics" module but it is not available in your version of scikit-learn.

The "plot_confusion_matrix" function was added in scikit-learn version 0.22, so if you are using an older version of scikit-learn, you will need to upgrade to version 0.22 or higher to use this function.

To upgrade scikit-learn, you can use pip, the Python package installer, by running the following command in your terminal or command prompt:

pip install --upgrade scikit-learn

After upgrading scikit-learn, you should be able to import the "plot_confusion_matrix" function from the "sklearn.metrics" module without any issues.