Ionic- all plugins “already installed”

When I run platform add (iOS or Android) it always tells me (for EVERY plugin I have)

already installed on ios

For example, here’s the error.

Plugin "cordova-plugin-inappbrowser" already installed on ios.
shell.js: internal error
Error: ENOENT: no such file or directory, lstat '/Users/mac1/dev/John/sumbitapp/platforms/ios/www/app/components/stylists/stylists.html'

The full version of the error - here

I have tried:

ionic state reset

ionic state reset --plugins

Manually removing each plugin (one by one):

cordova plugin rm xyz

sudo npm cache clean

Removing/re-adding platforms

None have worked. Please advise

I have the exact same problem on an project that was working ok. it looks like there is a permission problem but I can not figure out what needs to be changed. it also fail to install some plugins that where not present on the project. Anyone have any clue on this?

I’m having the same problem. Any luck?