Error while running ./gradlew run

[IrfaanKhalid]

Hi,

I attempted to run ./gradlew run and ran into the following issue:

$ ./gradlew run

FAILURE: Build failed with an exception.

* What went wrong:
Failed to capture snapshot of input files for task ':compileJava' property 'classpath' during up-to-date check.
> java.lang.UnsupportedOperationException (no error message)

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.

* Get more help at https://help.gradle.org

BUILD FAILED in 6s
1 actionable task: 1 executed

This is after I updated the version of Gradle listed in the .properties file (see my pull request here.

The output isn't too verbose here - any ideas?

Thanks.