Preview not Showing in Android 3.0 Canary

Question

I have started using Latest Android Studio 3.0 but I am having a problem with Preview. It\'s not showing Preview in Preview Tab. Here is what I have done

Answer 1

hey I had the same problem and i solved it like this: in build.gradle(app) edit the following lines like this:

compileSdkVersion 25
buildToolsVersion '25.0.0' 

targetSdkVersion 25

compile 'com.android.support:appcompat-v7:25.3.1'

Hope it works for you!