build failed with flutter_broadcast 0.4.0

[toplinuxsir]

FAILURE: Build failed with an exception.

• What went wrong:
  Execution failed for task ':flutter_broadcasts:compileReleaseKotlin'.

Inconsistent JVM-target compatibility detected for tasks 'compileReleaseJavaWithJavac' (1.8) and 'compileReleaseKotlin' (21).

Consider using JVM Toolchain: https://kotl.in/gradle/jvm/toolchain
Learn more about JVM-target validation: https://kotl.in/gradle/jvm/target-validation

[Rumidom]

the gradle version of this plugin is old, and causes problems on newer projects: I was getting a error related to namespaces was able to solve it and now I'm getting something related to JVM too