Message type: E = Error
Message class: OO - Class Builder/API
Message number: 222
Message text: Friends relationship &1 &2: Invalid type category (only classes allowed)
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OO222
- Friends relationship &1 &2: Invalid type category (only classes allowed) ?The SAP error message OO222 indicates that there is an issue with the relationship type in the Object-Oriented (OO) programming context, specifically when dealing with classes and their relationships. The message states that the type category is invalid and that only classes are allowed for the specified relationship.
Cause: The error typically arises in the following scenarios: Incorrect Relationship Definition: You may be trying to define a relationship between objects that are not classes. For example, if you are trying to create a relationship between a class and a data element or a structure, this error will occur. Misconfiguration in Class Hierarchy: If the class hierarchy is not set up correctly, or if there are references to non-class objects in the relationship definitions, this can lead to the OO222 error. Typographical Errors: Sometimes, simple typographical errors in the class names or relationship definitions can lead to this error.
Solution: To resolve the OO222 error, you can take
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