I got the fix, it was this line in my package.json file that was causing the problem:
"cordova-plugin-app-event": "file:node_modules/cordova-plugin-app-event"
Changing the path of the plugin fixed the issue.
Thanks for helping. 
I got the fix, it was this line in my package.json file that was causing the problem:
"cordova-plugin-app-event": "file:node_modules/cordova-plugin-app-event"
Changing the path of the plugin fixed the issue.
Thanks for helping.