Flash Builder: Can't export apps to Android 4.3 device

Question

Flash Builder Problem: Can't export apps to my Android device now that it was upgrade to Android 4.3
I just installed Android 4.3 and all the problems started. Everything was working great with 4.2.2.
Is this a know issue? I can't even build a simple Hello World mobile app.
Also some of my previously installed Flex apps will not run on my 4.3 device. Some old apps do
run and this is very confusing as all where created with Flash Builder 4.7 and Air 3.7.
Does Air 3.8 resolve this issue?
My system:
Mac Flash Builder 4.7 with Air 3.7

Answer 1

My Nexus 7 Android 4.3 developer options setting:
1- USB debugging (checked ON)
2- Verify apps over USB (checked ON)
My steps:
1- built a very basic Hello World mobile app in Flash Builder 4.7 with Air 3.7
2- Select Debug As…
3- Flash Builder starts as normal
4- I normally see (in the bottom right hand ) Launching 6%  - 57%,  then it launches the app on the device.
5- With 4.3 I see the following Launching 6%  - 57% - 58% …. 100%
6- Now I get a dialog box that says "The Flash Builder debugger failed to connect …."
I have a Nexus Galaxy phone running 4.2.2, and this same Hello World works perfectly.