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

/UI5/APP_API133 - Overview

• 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.

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.

/UI5/APP_API133 - Details

• 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