npm install -g ionic cordova typescript
npm install @ionic/app-scripts@latest --save-dev
npm install --save firebase
npm install angularfire2 --save
npm install --save-dev webpack
npm install --save-dev --save-exact @ionic/cli-plugin-ionic-angular@latest
npm install array-flatten --save
ionic cordova plugin add cordova-plugin-geolocation
npm install --save @ionic-native/geolocation
npm install --save @types/googlemaps
npm install --save @ionic-native/background-geolocation
ionic cordova plugin add cordova-plugin-mauron85-background-geolocation