I decided to add a App Widget to my application , I follow this guide on official Android developer page (link). Done everything what they have there and still I get this error:
I have my app-widget provider in /res/xml. Having widget layout in /layout folder and having AppWidgetProvider.java in Java folder.
So everything should be fine. Also I am using latest Android Studio with latest SDK (23) and latest build tools (23.0.2) and also using appcompat-v7 suppport library.
I pasted code from the page, just to be sure everything is in order. Seems like it's not.
I am frustrated after several hours of trying everything. My appplication is long term project, I am almost at the code version 200, so I have some experience, but not with this. I also read almost the whole thing.
PS: Any code would be useless to post in here, since it's the same code from that official Android Developer page. I wanted to do "prototype", which I can then customize to my needs. I never worked with widgets.