Thank you for reporting this.
I believe this is due to an issue in AppBuilder that prevents Windows Phone applications to install successfully after the first deploy. Could you check if manual uninstall of the app will provide a temporary workaround? To do this, please follow the next steps:
- On the actual device, uninstall the faulty application.
- Then, inside AppBuilder, Build and Deploy the application on the actual device again.
- Check if it works as expected.
If this solves the issue, you will have to do it every time, as the bug comes from the automatic uninstall process that AppBuilder provides.
Further, we are aware of that bug and a fix for it is already made. We plan to include it with the next official AppBuilder release, planned for this week.
I hope this helps.
Share what you think about AppBuilder and Telerik Platform with us in our feedback portal, so we can become even better!