Without knowing the process or the data it is hard to diagnose. Are you actually using operators from the RapidProM extension? If not, try uninstalling it and see whether it allows you to run the process without error.
Brian T. Lindon Ventures Data Science Consulting from Certified RapidMiner Experts
Answers
Are you actually using operators from the RapidProM extension? If not, try uninstalling it and see whether it allows you to run the process without error.
Lindon Ventures
Data Science Consulting from Certified RapidMiner Experts