Hi Jeevan, I have looked into this. Most common causes seem to be invalid certs, and old packages. Under the assumption that you are running the with the CLI, take the following steps.
- remove the webpack-dev-server package from package.json - run `ng update @angular/core` - run `ng update @angular/cli` - remove the `node_modules` folder - delete `yarn.lock` and/or `package-lock.json` - clean out your systems temp folder. (will remove stale certs) - run `yarn` or `npm install` to reinstall your packages. The order of those steps is important! After that, things should be working. If not, come back here, and I will figure out what's next. Regards Sander -- You received this message because you are subscribed to the Google Groups "Angular and AngularJS discussion" group. To unsubscribe from this group and stop receiving emails from it, send an email to angular+unsubscr...@googlegroups.com. To post to this group, send email to angular@googlegroups.com. Visit this group at https://groups.google.com/group/angular. For more options, visit https://groups.google.com/d/optout.
