Can't pubblish my application on google play!

Why when I try to upload my app on google play… it gives me back an error saying that the app is signed in the debug mode and “You uploaded an APK signed with a certificate that expires too soon”…

How can i solve it ? Should I buy the corona sdk premium to pubblish the app on google play??

You need to create your own certificate. Search on the forum/tutorial, there are a lot os posts about that.

You need to create your own certificate. Search on the forum/tutorial, there are a lot os posts about that.