How To Fix WWP1005 - Error occurred when calling the constructor for class CL_GUI_TOOLBAR

SAP Error Message - Details

• Message type: E = Error

• Message class: WWP1 - Planning Workbench

• Message number: 005

• Message text: Error occurred when calling the constructor for class CL_GUI_TOOLBAR

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

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.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message WWP1005 - Error occurred when calling the constructor for class CL_GUI_TOOLBAR ?

  The SAP error message WWP1005 indicates that there was an issue when trying to instantiate the class CL_GUI_TOOLBAR. This error typically occurs in the context of SAP GUI programming, particularly when dealing with custom screens or transactions that utilize the GUI toolbar.
  Possible Causes:
  
  Missing or Corrupted GUI Components: The SAP GUI installation may be incomplete or corrupted, leading to issues when trying to create GUI elements.
  Authorization Issues: The user may not have the necessary authorizations to access certain GUI components or classes.
  Incorrect Configuration: There may be configuration issues in the SAP system that prevent the proper instantiation of the toolbar.
  Memory Issues: Insufficient memory or resources on the client machine can lead to failures in creating GUI components.
  Version Compatibility: There may be compatibility issues between the SAP GUI version and the backend system.
  
  Solutions:
  
  Check SAP GUI Installation: Ensure that the SAP GUI is properly installed and up to date. Reinstalling or repairing the installation may resolve the issue.
  Review Authorizations: Check the user’s authorizations to ensure they have the necessary permissions to access the GUI components.
  Debugging: If you have access to the ABAP code, you can debug the program to identify the exact point of failure. Look for any custom code that might be interfering with the instantiation of the toolbar.
  Check System Configuration: Review the system configuration settings related to GUI components and ensure they are set correctly.
  Increase Memory: If the issue is related to memory, try closing other applications or increasing the available memory on the client machine.
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes or patches that address this specific error message.
  
  Related Information:
  
  SAP Community: You can search for discussions or similar issues on the SAP Community forums, where other users may have encountered and resolved the same error.
  SAP Documentation: Refer to the official SAP documentation for CL_GUI_TOOLBAR to understand its usage and any prerequisites.
  Transaction Codes: Use transaction codes like SE80 (Object Navigator) or SE37 (Function Module) to explore related objects and see if there are any issues with the underlying code.
  
  If the problem persists after trying the above solutions, it may be beneficial to contact SAP support for further assistance.