Hi,
I am setting up development environment for teh ArcGIS WebApp Builder, Where I can develop the themes/widgets and upload to local ArcGISserver/Online ArcGIS account.
Steps:
1.Download/Installed Nodejs
2.Download WebAppBuilder and run the StartUp.bat file
3.It executed the nodejs code and open the browser and requests for the
Web AppBuilder for ArcGIS
Specify the URL to your ArcGIS Online organization or Portal for ArcGIS
4. I specify ESRI ArcGIS Online account.
Error: