Message type: E = Error
Message class:  SDDIC_DDLA_ANNOCHECK - Messages for annotation usage check 
Message number: 078
Message text: Reference to class must start with 'ABAP:'
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The SAP error message SDDIC_DDLA_ANNOCHECK078 indicates that there is an issue with the reference to a class in your ABAP code. Specifically, the error states that the reference to the class must start with 'ABAP:'. This typically occurs when you are trying to use a class that is not properly defined or referenced in the ABAP environment.
Cause: Incorrect Class Reference: The class name you are trying to use does not start with the prefix 'ABAP:', which is required for ABAP classes. Namespace Issues: The class might be in a different namespace or not properly defined in the system. Typographical Errors: There could be a typo in the class name or the way it is referenced in the code.
Solution: Check Class Name: Ensure that the class name you are referencing starts with 'ABAP:'. For example, if you are trying to reference a class named MyClass, it should be referenced as ABAP:MyClass. Verify Class Existence: Make sure
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