Mahdi Zareei

Notebook validation failed - notebook with widget- nbformat 5.0.4

9

I am getting following error over and over and have no idea what causes it! `Notebook validation failed: {'model_id': '59d3b150e8eb4e44b6c0ce0030dfc2b7', 'version_major': 2, 'version_minor': 0} is not valid under any of...