Android Studio Rendering Problems The following classes could not be found

Question

I just update Android Studio  and when I restarted it  the preview window rendering failed  and I was told that      The following classes could not be found    -  android support v7 internal widget ActionBarOverlayLayout   If someone can tell me what can I do to fix this rendering problem  Thank you

User · Answer

Please see the following link - here is where I found a solution that worked for me.

Rendering problems in Android Studio v 1.1 / 1.2

Changing the Android Version when rendering layouts worked for me - I flipped it back to 21 and my "Hello World" app then rendered the basic activity_main.xml OK - at 22 I got this error. I borrowed the image from this posting to show you where to click in the Design tab of the XML preview. What is wierd is that when I flip back to 22 the problem is still gone :-).

enter image description here

User · Answer

To use the class ActionBarOverlayLayout you need to include this in the dependencies section of build gradle file   compile  com android support design 24 1 1    Sync the project once again and then you will find no problem

User · Answer

I faced this error when I created second activity in my project in the newly updated Android Studio I solved it simply by copy pasting the whole xml code from first layout to the second and then I just removed the code that s unnecessary

User · Answer

I have faced this issue when I introduced additional supporting libraries in my project IntelliJ IDEA   So for me  File  -   Invalidate Caches      and select  Invalidate and Restart  option to fix this

User · Answer

I had to change my values styles xml to       lt  -- Base application theme  -- gt       lt style name  AppTheme  parent  Base Theme AppCompat Light DarkActionBar  gt    Before that change  it was without  Base     IntelliJ IDEA 2017 2 4

User · Answer

You have to do two things    be sure to have imported right appcompat-v7 library in your project structure -  dependencies change the theme in the preview window to not an AppCompat theme  Try with Holo light or Holo dark for example

[android] Android Studio Rendering Problems : The following classes could not be found

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