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

SAP Error Message - Details

• 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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AnswerBot

• 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 errors. You can use the syntax check feature (Ctrl + F2) to identify issues.
  Regenerate Classes: If you have made changes to the data model or service definition, ensure that you regenerate the necessary classes. You can do this by:
  
  Going to the service definition in transaction SEGW.
  Right-clicking on the project and selecting "Generate" to regenerate the runtime artifacts.
  
  
  Implement Missing Methods: Ensure that all required methods and interfaces are correctly implemented in the MPC class.
  Check for Dependencies: Verify that all dependencies and related classes are correctly defined and activated.
  Transport Issues: If this error occurs after a transport, ensure that all related objects were transported correctly and are in sync.
  
  Related Information:
  
  Transaction Codes:
  
  SE80: Object Navigator for accessing and editing ABAP objects.
  SE24: Class Builder for managing ABAP classes.
  SE11: Data Dictionary for checking database objects.
  SEGW: Service Builder for managing OData services.
  
  
  Debugging: If the error persists, consider using the ABAP debugger to step through the code and identify where the syntax error is occurring.
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that might address known issues related to this error message.
  
  By following these steps, you should be able to identify and resolve the syntax errors in the MPC extension class, thereby eliminating the error message.