How To Fix GEF_CORE_MSG005 - Method is not implemented in base class.

SAP Error Message - Details

• Message type: E = Error

• Message class: GEF_CORE_MSG - Message class for GEF core

• Message number: 005

• Message text: Method is not implemented in base class.

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message GEF_CORE_MSG005 - Method is not implemented in base class. ?

  The SAP error message GEF_CORE_MSG005: Method is not implemented in base class typically indicates that a method that is expected to be implemented in a base class is either missing or not properly defined in the subclass. This error often arises in the context of ABAP programming, particularly when dealing with class inheritance and polymorphism.
  Cause:
  
  Missing Implementation: The method is declared in the base class but has not been implemented in the subclass.
  Incorrect Method Signature: The method in the subclass may have a different signature (parameters, return type) than the one declared in the base class.
  Abstract Method: If the method in the base class is declared as an abstract method, it must be implemented in any subclass.
  Class Activation Issues: Sometimes, the class might not be activated properly, leading to inconsistencies in method availability.
  
  Solution:
  
  
  Implement the Method: Ensure that the method is implemented in the subclass. If it is an abstract method, provide a concrete implementation.
  CLASS subclass_name DEFINITION INHERITING FROM base_class_name.
    PUBLIC SECTION.
      METHODS: method_name.
  ENDCLASS.
  
  CLASS subclass_name IMPLEMENTATION.
    METHOD method_name.
      " Implementation code here
    ENDMETHOD.
  ENDCLASS.
  
  
  Check Method Signature: Verify that the method signature in the subclass matches the one in the base class. This includes checking the parameter types and return types.
  
  
  Activate Classes: Make sure that both the base class and the subclass are activated. You can do this in the ABAP Workbench (SE80 or SE11).
  
  
  Review Inheritance: Ensure that the subclass is correctly inheriting from the base class. Check for any typos or incorrect class names.
  
  
  Debugging: If the issue persists, use the ABAP debugger to trace the execution and identify where the method call is failing.
  
  
  Related Information:
  
  ABAP Documentation: Refer to the official SAP documentation for more details on class inheritance and method implementation.
  SAP Community: Engage with the SAP Community forums for insights and solutions from other developers who may have encountered similar issues.
  SAP Notes: Check SAP Notes for any known issues or patches related to the specific version of SAP you are using.
  
  By following these steps, you should be able to resolve the GEF_CORE_MSG005 error and ensure that your ABAP classes are functioning as intended.