How To Fix /UI5/APP_API133 - Mandatory attribute '&1' could not be determined in descriptor '&2'

SAP Error Message - Details

• Message type: E = Error

• Message class: /UI5/APP_API -

• Message number: 133

• Message text: Mandatory attribute '&1' could not be determined in descriptor '&2'

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /UI5/APP_API133 - Mandatory attribute '&1' could not be determined in descriptor '&2' ?

  The SAP error message /UI5/APP_API133 Mandatory attribute '&1' could not be determined in descriptor '&2' typically occurs in the context of SAP Fiori applications that use the UI5 framework. This error indicates that a required attribute (denoted by &1) is missing or cannot be found in the specified descriptor (denoted by &2), which is usually a manifest file or a configuration file for the application.
  Cause:
  
  Missing Configuration: The mandatory attribute specified in the error message is not defined in the application's descriptor file (e.g., manifest.json).
  Incorrect Path: The path to the descriptor file may be incorrect, or the file may not be properly loaded.
  Version Mismatch: There may be a version mismatch between the UI5 libraries being used and the application configuration, leading to missing attributes.
  Typographical Errors: There could be typographical errors in the attribute names or in the descriptor file.
  
  Solution:
  
  Check the Descriptor File: Open the manifest.json or the relevant descriptor file and ensure that the mandatory attribute is defined correctly. Look for the attribute mentioned in the error message.
  Validate Configuration: Ensure that all required configurations are present in the descriptor file. Refer to the official SAP documentation for the specific attributes required for your application.
  Correct Path: Verify that the path to the descriptor file is correct and that the file is being loaded properly by the application.
  Update UI5 Libraries: If you suspect a version mismatch, consider updating the UI5 libraries to the latest version compatible with your application.
  Check for Typos: Review the attribute names in the descriptor file for any typographical errors that could lead to the attribute not being recognized.
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP UI5 documentation for detailed information on the required attributes for specific components and configurations.
  SAP Community: Engage with the SAP Community forums to see if others have encountered similar issues and to find potential solutions.
  Debugging Tools: Use browser developer tools to inspect the network requests and console logs for additional context around the error.
  
  By following these steps, you should be able to identify and resolve the issue causing the error message /UI5/APP_API133.