Decision Tree Operator is Missing
I could not find the classic Decision Tree operator. Error Message is attached.
What happened to the usual operator that is used in previous textbook examples and RapidMiner sample processes? Do I need a plugin? How do I get the operator working again?
Appreciate your help with the details. Thank you.

What happened to the usual operator that is used in previous textbook examples and RapidMiner sample processes? Do I need a plugin? How do I get the operator working again?
Appreciate your help with the details. Thank you.
