I had the same message as you and just updated it. Kotlin and Firebase plugins are bundled. That should mean that the studio is preinstalled with them and they must be compatible. Looks fine so far.
My new version:
Android Studio 4.0
Build #AI-193.6911.18.40.6514223, built on May 20, 2020
I have already solved this issue. At first, please uninstall the Android Studio of the old version on your pc or laptop. And then, please down the Android Studio of the new version and install it on your pc or laptop. I hope this can be helped you.
If you are running Linux you can try the below command and then update
chmod a-x /PATH/TO/android-studio/plugins/Kotlin/kotlinc/bin/*