How To Fix /UI5/DESCR_VAR_CHECK021 - ID from URI &1 does not match the ID from content &2

SAP Error Message - Details

• Message type: E = Error

• Message class: /UI5/DESCR_VAR_CHECK -

• Message number: 021

• Message text: ID from URI &1 does not match the ID from content &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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /UI5/DESCR_VAR_CHECK021 - ID from URI &1 does not match the ID from content &2 ?

  The SAP error message /UI5/DESCR_VAR_CHECK021 indicates a mismatch between the ID specified in the URI and the ID found in the content of the resource being accessed. This typically occurs in the context of SAPUI5 applications when there is an inconsistency in the identifiers used for resources, such as views, controllers, or models.
  Cause:
  
  ID Mismatch: The ID provided in the URI does not match the ID defined in the content (e.g., XML view, JSON model, etc.). This can happen if the resource has been renamed or if there are multiple versions of the resource.
  Caching Issues: Sometimes, browser or server caching can lead to outdated resources being loaded, causing discrepancies in IDs.
  Deployment Issues: If the application was recently deployed or updated, there might be inconsistencies between the deployed resources and the references in the code.
  Incorrect Routing: If the routing configuration in the application is incorrect, it may lead to the application trying to access the wrong resource.
  
  Solution:
  
  Check Resource IDs: Verify that the ID in the URI matches the ID defined in the resource content. Ensure that there are no typos or discrepancies.
  Clear Cache: Clear the browser cache and refresh the application. If you are using a server-side cache, consider clearing that as well.
  Review Deployment: Ensure that the latest version of the application is deployed correctly and that all resources are up to date.
  Check Routing Configuration: Review the routing configuration in your manifest.json or Component.js file to ensure that the paths and IDs are correctly defined.
  Debugging: Use browser developer tools to inspect the network requests and responses. This can help identify if the correct resources are being loaded and if there are any errors in the console.
  
  Related Information:
  
  SAPUI5 Documentation: Refer to the official SAPUI5 documentation for best practices on resource management and routing.
  Version Control: If you are using version control, check the history of changes to see if any recent changes might have caused the issue.
  Community Forums: Consider checking SAP Community forums or Stack Overflow for similar issues and solutions shared by other developers.
  
  By following these steps, you should be able to identify and resolve the cause of the /UI5/DESCR_VAR_CHECK021 error in your SAPUI5 application.