appcompat-v7 v21.0.0 causing crash on Samsung devices with Android v4.2.2

Question

We just changed our application to use the appcompat-v7 support library in order to take advantage of the support actionbar and support Material themes. Using <

Answer 1

Change the Compile Sdk Version of your project to "API 18:(JellyBean)"

The default is set to "Lollipop"

So far it solved my problem on Qmobile i9

STEPS

1. Right Click on your project and select Open Module Settings (or press F4)
2. In the properties tab Compiled Sdk Version

Answer 2

I encountered the same issue on Tecno P9, but after using build tools 24 and for my support library I used 24.2.0, it was fixed.

Answer 3

Replace AppCompatActivity With Activity

This helped me.