Unable to resolve dependency tree" error during NPM install

https://github.com/DeborahK/Angular-GettingStarted/issues/143

 

I haven't seen that error before.

Had you done anything else? Or installed anything else into that folder?

What version of node and npm do you have?

Reading this: https://stackoverflow.com/questions/64573177/unable-to-resolve-dependency-tree-error-when-installing-npm-packages

Suggests trying:

• npm install --force
• npm install --legacy-peer-deps

But I don't know why you would suddenly see this. The dependencies in the package.json file should all be compatible unless something else was installed to modify it.

EDIT:
If you want to continue with the course without having to install anything, try using stackblitz as per the instructions here: https://github.com/DeborahK/Angular-GettingStarted#stackblitz