How To Fix J-145 - Unable to determine underlying FGET of a complex class

J-145 - Overview

• Message type: E = Error

• Message class: J- -

• Message number: 145

• Message text: Unable to determine underlying FGET of a complex class

Self-Explanatory Message

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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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J-145 - Details

• The SAP error message J-145 "Unable to determine underlying FGET of a complex class" typically occurs in the context of ABAP programming when the system is unable to resolve the underlying field getter (FGET) for a complex class. This can happen for several reasons, including issues with the class definition, inheritance, or the way the class is being used in the code.
  Causes:
  
  Incorrect Class Definition: The class may not be defined correctly, or there may be issues with the attributes or methods defined within the class.
  Inheritance Issues: If the class is inheriting from another class, there may be problems with the parent class that prevent the child class from functioning correctly.
  Missing or Incorrect Annotations: If the class or its attributes are not properly annotated, the system may not be able to determine how to access the fields.
  Complex Data Types: If the class contains complex data types or structures that are not