Receiving 'process.setMaxListeners is not a function' error when app is initialised

Whenever I run ionic serve I keep running into the following error:
process.setMaxListeners is not a function

My app was running perfectly until I attempted to add ion-multi-picker to my app.
After adding this component I got the max listeners error. Even after I removed the component I still received the error.
I even rebuilt the whole app and I still receive this error. My other ionic apps still work fine.
I’ve uninstalled and reinstalled ionic globally.

Any one have any ideas on what may be causing this?