plotly plots in jupyter notebooks: Validation fails when saving

Question

I\'am new to plotly and I\'am having a problem with my plots when generating them inside jupyter notebooks.

Whenever I generate a plot, evrything works fine, but when I

Answer 1

I got the same problem but the answer above didn't help me. I tried then conda update --all but this didn't help too.

Later I was given the link: https://gitmemory.com/issue/jupyter/nbformat/161/574959380. So, I opened ipynb file with text editor, replaced "nbformat_minor": 1 with "nbformat_minor": 4 and saved the file. After reloading the notebook the problem was fixed.