How To Fix OO196 - The interface cannot be nested within itself

OO196 - Overview

• Message type: E = Error

• Message class: OO - Class Builder/API

• Message number: 196

• Message text: The interface cannot be nested within itself

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message OO196 - The interface cannot be nested within itself ?

  The SAP error message OO196, "The interface cannot be nested within itself," typically occurs in the context of ABAP programming when you are trying to define an interface that references itself, either directly or indirectly. This is not allowed in ABAP, as it creates a circular reference that the system cannot resolve.
  
  Cause:
  
  Direct Self-reference: You may have defined an interface that includes itself as a component or extends itself.
  Indirect Self-reference: The interface might be extending another interface that, in turn, references the original interface, creating a circular dependency.
  
  
  Solution:
  To resolve this error, you should:
  
  Check Interface Definition: Review the definition of the interface in question. Ensure that it does not reference itself directly.
  Check Inheritance: If the interface is extending another interface, check that the parent interface does not reference the child interface.
  Refactor Code: If you find a circular reference, you will need to refactor your code. This may involve:
  Removing the self-reference.
  Redesigning the interface