Attribute class is not allowed here error. I don't know what is causing this error
Android studio :3.4
classpath "com.android.tools.build:gradle:3.4.0"
Just found out that it's android studio 3.4 error, this should probably go after an Android update or for now downgrade the version works.
Note: it does not run into any errors if you run with the same version
Update: Android studio update 3.4.1 removes this issue