How To Fix FDT_CORE277 - Class &1 does not have the mandatory direct or indirect superclass &2

SAP Error Message - Details

• Message type: E = Error

• Message class: FDT_CORE - Formula & Derivation Tool: Core

• Message number: 277

• Message text: Class &1 does not have the mandatory direct or indirect superclass &2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message FDT_CORE277 - Class &1 does not have the mandatory direct or indirect superclass &2 ?

  The SAP error message FDT_CORE277 indicates that there is an issue with the class hierarchy in the context of the SAP Fiori Design Time (FDT) framework. Specifically, it means that a class (denoted as &1) is missing a mandatory superclass (denoted as &2), either directly or indirectly. This can occur when a class is expected to inherit from another class that is required for its functionality, but the inheritance is not properly set up.
  Cause
  
  Missing Superclass: The class you are trying to use does not extend the required superclass. This could be due to a misconfiguration or an oversight during the class definition.
  Incorrect Class Definition: The class might have been defined incorrectly, or the superclass might have been deleted or renamed.
  Transport Issues: If the class was transported from one system to another, there might have been issues during the transport that caused the superclass to be missing.
  Development Environment Issues: Sometimes, inconsistencies in the development environment can lead to such errors, especially if there are multiple versions of the same class.
  
  Solution
  
  
  Check Class Definition: Verify the definition of the class &1 and ensure that it correctly extends the required superclass &2. You can do this by navigating to the class in the ABAP Workbench (SE80 or SE24) and checking the inheritance settings.
  
  
  Create or Restore Superclass: If the superclass &2 is missing, you may need to create it or restore it from a backup or transport request.
  
  
  Transport Request: If the issue arose after a transport, check the transport logs to ensure that all necessary objects were included in the transport request. You may need to re-transport the missing superclass.
  
  
  Check Dependencies: Ensure that all dependencies for the class are correctly set up. This includes checking for any other classes or interfaces that may be required.
  
  
  Debugging: If you are unable to resolve the issue through the above steps, consider debugging the application to see where the error is being triggered. This may provide additional context on what is going wrong.
  
  
  Consult Documentation: Review SAP documentation or community forums for any known issues related to this error message, as there may be specific patches or notes available.
  
  
  Related Information
  
  SAP Notes: Check SAP Notes for any known issues or fixes related to this error message. You can search for FDT_CORE277 in the SAP Support Portal.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found.
  ABAP Development Guidelines: Familiarize yourself with best practices for class and interface design in ABAP to avoid similar issues in the future.
  
  By following these steps, you should be able to identify and resolve the issue causing the FDT_CORE277 error message.