Visual Studio Code PHP Intelephense Keep Showing Not Necessary Error

Question

After the latest update of PHP Intelephense that I get today, the intelephense keep showing an error for an undefined symbol for my route (and other class too), there is no

Answer 1

1.3.3 fixed it. Just update your extension.

Answer 2

If you see this immediately after adding a new Vendor class, be sure to run the VScode command (control-shift-P) Index Workspace

Answer 3

To those would prefer to keep it simple, stupid; If you rather get rid of the notices instead of installing a helper or downgrading, simply disable the error in your settings.json by adding this:

"intelephense.diagnostics.undefinedTypes": false