Hi Sander, Thanks for you feedback.I followed the steps accordingly as you mentioned above. but the same error still appears.
I deleted webpack-dev-server from package.json of node_modules/Webpack-dev-server/package.json. and also deleted webpack from package.json of root. I waiting for your feedback. Thanks, Jeevan Chathuranga On Thursday, December 13, 2018 at 9:00:58 AM UTC+5:30, Sander Elias wrote: > > 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.
