"_Problem loading widget" in release version only - android

I've a really weird behavior with the App widget:
I've a home screen widget with a ListView showing data from internet.
It's working fine with no problem at all on the debug version,
but when I install release:
when I drag the widget to the home screen it shows "problem loading widget" and in the Logcat:
E/ResourcesManager: failed to add asset path /data/app/com.askelp.askelp-u7QWKA4gT6KmeGou17fWHw==/base.apk
E/RemoteViews: Package name com.askelp.askelp not found
BUT if I left it in the home screen and reinstalled the app it works then, and if I removed the widget from the home screen and reinstalled it again and dragged it again to the home screen it shows the same error and "problem loading widget"
Anyone has any idea?
EDIT:
I tried now to run it on my phone it's working, so it's working on my phone but not working in the emulator!

Solution1 :
Have you try to invalidate cache/restart?
Solution 2:
From the Documentation Link , You can only use this as widgets
A RemoteViews object (and, consequently, an App Widget) can support the following layout classes:
*FrameLayout
*LinearLayout
*RelativeLayout
*GridLayout
And the following widget classes:
*AnalogClock
*Button
*Chronometer
*ImageButton
*ImageView
*ProgressBar
*TextView
*ViewFlipper
*ListView
*GridView
*StackView
*AdapterViewFlipper

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