I have developed my own operator for RM and it works in RM like a charm. Now, I want to call a process which contains my own operator from my java program. But RM says:
com.rapidminer.operator.UserError: The dummy operator MClusterValidator (replacing tutorial:MClusterValidator) cannot be executed.
As I mentioned previously, my operator MClusterValidator works well in RM. but I am not able to call it from my own java program!!! It has made me so confused. Any Idea please?