when you press newest this change the API so you have only installed until 28 I do have installed platform 29because I did press the newest button. The manifest is showing 28.
easy to check go to android sdk dir look for platforms and check what is teh biggest one you have there
this is not an error is merely a warning they recommend to build api and target teh same, so you can set api 28 and build 28 and it is Ok for store, tested yesterday.If you look at the screenshot I posted with the Google Play errors - I included my Fusion settings that shows 29. And on the previous page of this thread I posted a manifest error message to say that the target version was 28 but the build was 29 - or something like that - I did copy & paste the actual message there.
Missing Android XML namespace Most Android views have attributes in the Android namespace. When referencing these attributes you must include the namespace prefix, or your attribute will be interpreted by aapt as just a custom attribute. Similarly, in manifest files, nearly all attributes should be in the android:
And indeed it is because the runtime is not base in layout created from XML, all of them are created programmatically, so this is not a problem.