gradlew run

when I use the command .\gradlew run, I get the follow error:

FAILURE: Build failed with an exception.

* Where:
Build file 'I:\code\Java\OnJava8-Examples-master\build.gradle' line: 21

* What went wrong:
A problem occurred evaluating root project 'OnJava8-Examples-master'.
> Plugin with id 'com.mindviewinc.example-output-verification' not found.