How To Fix SWDP_WB_TOOL391 - The controller belonging to controller usage &1 does not exist

SAP Error Message - Details

• Message type: E = Error

• Message class: SWDP_WB_TOOL - Web Dynpro: Messages for Workbench Tools

• Message number: 391

• Message text: The controller belonging to controller usage &1 does not exist

What causes this issue?

Related component usage: &V2&

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Delete the affected controller usage.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message SWDP_WB_TOOL391 - The controller belonging to controller usage &1 does not exist ?

  The SAP error message SWDP_WB_TOOL391 indicates that there is an issue with the controller associated with a specific controller usage in the SAP Web Dynpro application. This error typically arises when the system cannot find the specified controller, which can happen for several reasons.
  Cause:
  
  Missing Controller: The controller that is referenced in the controller usage does not exist in the system. This could be due to deletion or incorrect configuration.
  Incorrect Configuration: The controller usage might be incorrectly configured, pointing to a non-existent or incorrectly named controller.
  Transport Issues: If the application was transported from one system to another, the controller might not have been included in the transport request.
  Development Environment Issues: If you are working in a development environment, the controller might not have been activated or might be in an inconsistent state.
  
  Solution:
  
  Check Controller Existence: Verify that the controller exists in the system. You can do this by navigating to the relevant Web Dynpro component and checking the list of controllers.
  Correct Configuration: If the controller exists but is not correctly configured, update the controller usage to point to the correct controller. Ensure that the naming is consistent and matches the expected naming conventions.
  Transport Check: If the issue arose after a transport, ensure that the transport request included all necessary objects, including the controller. You may need to re-transport the missing objects.
  Activate Components: If you are in a development environment, ensure that all components, including the controller, are activated. You can do this in the Web Dynpro component workbench.
  Check Dependencies: Ensure that all dependencies for the controller are met and that there are no missing components that the controller relies on.
  
  Related Information:
  
  Transaction Codes: You can use transaction codes like SE80 (Object Navigator) or SE11 (Data Dictionary) to check the existence and configuration of controllers.
  Web Dynpro Documentation: Refer to SAP's official documentation on Web Dynpro for more details on controllers and their usage.
  SAP Notes: Check for any relevant SAP Notes that might address known issues related to this error message.
  Debugging: If the issue persists, consider debugging the application to trace where the error occurs and gather more context about the missing controller.
  
  By following these steps, you should be able to identify and resolve the issue related to the SWDP_WB_TOOL391 error message.