How to solve this error


on live testing when I go to home screen show this run time error.

plz help me how to solve it


You are using a Taifun extension, try to delete it and import again.
If it doesn’t solves the problem contact with @Taifun to ask him about this.


okk thank you so much


Try reconnecting and see if that resolves the issue


How to avoid runtime errors with the companion app

  1. After importing an extension, please restart the companion app.
  2. If you like to use an extension on a different screen, in Screen1 additionally drag the extension into the working area.

While starting the companion app, all necessary assets and also the imported extensions of your project will be copied to your device. So in case the no such class error shows up, the extension code to run the extension is not available on your device. Without that code the companion app is not able to execute methods from the extension.


Trying to push the limits! Snippets, Tutorials and Extensions from Pura Vida Apps by Taifun.


You can one other method also, I use it a lot of times.

Goto app settings of AppyBuilder companion and clear all data and cache. Restart the app and connect with the AppyBuilder and you are good to go.