How To Fix /FTI/AUTHORING_ERROR045 - MPC EXT class '&1' has syntax errors

/FTI/AUTHORING_ERROR045 - Overview

• Message type: E = Error

• Message class: /FTI/AUTHORING_ERROR -

• Message number: 045

• Message text: MPC EXT class '&1' has syntax errors

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /FTI/AUTHORING_ERROR045 - MPC EXT class '&1' has syntax errors ?

  The SAP error message /FTI/AUTHORING_ERROR045 indicates that there are syntax errors in the specified MPC (Model Provider Class) extension class. This error typically arises in the context of SAP Gateway and OData services, where the MPC class is responsible for defining the data model and service operations.
  
  Cause:
  
  Syntax Errors: The most common cause is that there are actual syntax errors in the ABAP code of the MPC extension class. This could be due to missing semicolons, incorrect variable declarations, or other coding mistakes.
  Inconsistent Changes: If changes were made to the data model or service definition without properly regenerating the associated classes, it could lead to inconsistencies and errors.
  Missing Implementations: If the MPC class is expected to implement certain methods or interfaces that are not correctly defined, it can also trigger this error.
  
  
  Solution:
  
  Check Syntax: Open the MPC extension class in the ABAP Workbench (transaction SE80 or SE24) and check for any syntax