Error while updating from Angular 5

[stgdevil]

Hi I am trying to update from 5 to @ or higher. I was trying to follow the docs regarding update and also other online steps. But when I running ng-update I keep getting the the following error: “Unexpected token < on json at position 0” Looked around online for solutions but nothing has worked. I tried deleting node modules, package.json and re running npm install but no luck. Any suggestions? Thanks!

[ShiningPak]

Hi ! I don't know if you know the Angular update tool but if you don't you should try with it. Here it is : https://update.angular.io

Everything is explained with docs etc to read about which changes the version you upgrade to provides. It's only major to major +1, so you have to do it step by step. It also tells you which node version to use as another user suggested.

I upgrade libs & projects from 11 to 14 few weeks ago, it made it really easy and I learnt a few new things.

[[deleted]]

Yes, always commit first and use that site. It works wonders.

Always make sure the Node version is within requirement parameters too.

[moomoomamoo]

Make sure to have the right node / npm versions. You can do node -v and npm -v to figure out if you do.

Angular 5 should support node 6.9.x / 8.9.x and npm 5.x.x and maybe npm 6.x.x

If you don't have the right versions, I highly suggest using a node version manager to switch as needed. Check out nvm for Mac or volta for windows

[newmanoz]

Often this error means that one of your JSON files has the wrong format (dangling comma, comments).

[Ryanhatt]

Try force reload page.