Publishing Mache Client to MavenLocal gives pom is invalid error

I'm trying to get the Client code for Minecraft and I tried to publish it to MavenLocal and it output a pom is invalid error
`Picked up JAVA_TOOL_OPTIONS: -XX:+UseContainerSupport -XX:ActiveProcessorCount=2

Task :versions:v1_21_4:generateMacheMetadata UP-TO-DATE
Task :versions:v1_21_4:createMacheArtifact UP-TO-DATE
Task :versions:v1_21_4:generateMetadataFileForMachePublication
Task :versions:v1_21_4:generatePomFileForMachePublication
Task :versions:v1_21_4:publishMachePublicationToMavenLocal FAILED

FAILURE: Build failed with an exception.

• What went wrong:
  Execution failed for task ':versions:v1_21_4:publishMachePublicationToMavenLocal'.

Failed to publish publication 'mache' to repository 'mavenLocal'
Invalid publication 'mache': POM file is invalid. Check any modifications you have made to the POM file.

• Try:

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 2s
5 actionable tasks: 3 executed, 2 up-to-date`

Start with the :versions:v1_21_4:generatePomFileForMachePublication and publishMachePublicationToMavenLocal tasks, rerunning the publish task with --stacktrace as suggested. Inspect the generated POM and the fuller failure output to identify why Maven considers it invalid; done means publishing the Mache publication to MavenLocal succeeds.