UnknownBackendTraceback and FileNotFoundError when using Google Colab about s3prl

[andi611]

Hi,
to answer your questions:

1. For the first problem, although I'm not familiar with Google colab, but I believe the error was caused by this line: matplotlib.use("Agg"), since "Agg" is probably an UnknownBackendTraceback for Google colab. You might want to change the matplotlib backend to something suitable for Google colab or simply remove all the codes associated with matplotlib.

2. According to the error: FileNotFoundError: File b'data/libri_mel160_subword5000/train-clean-360.csv' does not exist, it looks like a simple path issue. You have to make sure you have the file train-clean-360.csv in this relative path: data/libri_mel160_subword5000/train-clean-360.csv. Note that data/ should be under the same directory as runner_mockingjay.py.
   If not, follow the steps in https://github.com/andi611/Mockingjay-Speech-Representation/wiki/Mockingjay-Preprocessing-Instructions to generate them.