build dev failed: Cannot set property 'fileSystem' of null

Question

I am trying to run an Ionic 2 Application. I am getting following error on running ionic serve

build dev failed: Cannot set property \'fi

Answer 1

This worked for me: In your project go to yourProjectname\node_modules\@typesoject

Then install

$ npm install pouchdb @types/pouchdb

You can now use

import PouchDB from 'pouchdb';

as explained here here