Your message translates (into English) as:
The application package conflicts with an existing package, so the installation could not be completed.
Done
What other extensions are you using ?
Hello, thank you for your reply.
Iām using the Dialogs extension from community.appinventor.mit.edu (URL: All Rescued Extensions from Thunkable Classic Community - #6 by gordonlu310).
This is the simplified version of my .aia file ā could the issue be caused by a conflict with the extension?
App.aia (164.9 KB)
Your aia has no issue ,its working fine. It might be because you already installed same package , search and uninstall the app and try to install again