This problem is caused by conflicts in some classes. And it has been solved by deleting the` heron-api:[HERON_VERSION].jar` from the `pom.xml`. But the `heron-spi:[HERON_VERSION].jar` is necessary to create a custom scheduler.
[ Full content available at: https://github.com/apache/incubator-heron/issues/3033 ] This message was relayed via gitbox.apache.org for [email protected]
