Electron autoUpdater is working fine with public repository but it could not find latest release from private repository.
I had configured electron-updater also to use the github token:
autoUpdater.setFeedURL({ provider: 'github', owner: '', repo: '', token: '*****', private: true, host: 'github.com' });
It is throwing following error: Unable to find latest version on GitHub, please ensure a production release exists: HttpError: 404
Downgrade electron-updater to "4.6.5", and set enviroment variable GH_TOKEN