Hi! Did you double check that the file is actually there and in the same directory? Sometimes it helps pip if you run pip install *.whl. This will typically also show a more descriptive error if the file is not there. Also see here:
Alternatively, a .whl file is just a .zip archive under the hood, so you can always unpack it and place it in your site packages manually. See here for more details: Installation & Setup · Prodigy · An annotation tool for AI, Machine Learning & NLP