Minecraftforge: [1.13.2] setupDecompWorkspace not working?

Forge: 1.13.2-25.0.47-mdk
OpenJDK 8 development kit 8.u202-1

Hi, I whanted to try out forge 1.13.2, but I am unable to create my workspace. I've tried several commands:

./gradlew setupDecompWorkspace
./gradlew setupDecompWorkspace eclipse
./gradlew setupDecompWorkspace --refresh-dependences

But every time I end up with the same error log:

To honour the JVM settings for this build a new JVM will be forked. Please consider using the daemon: https://docs.gradle.org/4.9/userguide/gradle_daemon.html.
Daemon will be stopped at the end of the build stopping after processing

> Configure project :
New Dep: net.minecraftforge:forge:1.13.2-25.0.47_mapped_snapshot_20180921-1.13

FAILURE: Build failed with an exception.

* What went wrong:
Task 'setupDecompWorkspace' not found in root project 'msutilities_1.13.2'.

* Try:
Run gradlew tasks to get a list of available tasks. Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

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

BUILD FAILED in 4s

Do I something wrong, or is a newer java required?