Android studio 4.0.1 run button not working

Question

After pressing run button or debug button the button disabled but gradle not starting.

Also Android studio throws an exception

com.crashlytics.tools.bootstrap.BootstrapException: Exception starting OSGi bundle: com.crashlytics.tools.intellij.core 

I have tried

1. clean
2. rebuild
3. Invalidate and restart
4. Restart pc

Result is the same.

Answer 1

Perhaps the result is come from idea files.

• Manually delete .idea folder
• sync project with gradle files
• clean
• rebuild