Ionic: Ionic CLI : 5.4.16 Ionic Framework : @ionic/angular 4.11.13 @angular-devkit/build-angular : 0.13.10 @angular-devkit/schematics : 7.3.10 @angular/cli : 7.3.9 @ionic/angular-toolkit : 1.5.1 Cordova: Cordova CLI : 10.0.0 Cordova Platforms : not available Cordova Plugins : not available Utility: cordova-res : 0.15.1 native-run : not installed System: Android SDK Tools : 26.1.1 (C:\Users\Ace\AppData\Local\Android\Sdk) NodeJS : v12.16.3 (C:\Program Files\nodejs\node.exe) npm : 6.14.4 OS : Windows 10 ====================================================== 1. nodejs 12.16.3 (https://nodejs.org/en/) 2. Ionic > npm install ionic (cli 5.4.16, framework @ionic/angular 4.11.13+) > npm install --no-package-lock > ionic serve --lab