How To Fix /UI5/MP_CA_APP004 - DataSource to delete does not exist in base descriptor: &1

SAP Error Message - Details

• Message type: E = Error

• Message class: /UI5/MP_CA_APP -

• Message number: 004

• Message text: DataSource to delete does not exist in base descriptor: &1

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/MP_CA_APP004 - DataSource to delete does not exist in base descriptor: &1 ?

  The SAP error message /UI5/MP_CA_APP004 DataSource to delete does not exist in base descriptor: &1 typically occurs in the context of SAP Fiori or UI5 applications when there is an attempt to delete a data source that is not defined in the base descriptor. This can happen during the development or deployment of UI5 applications, particularly when managing data sources in the manifest file or when working with OData services.
  Cause:
  
  Missing Data Source: The data source you are trying to delete does not exist in the manifest.json file or the base descriptor of the application.
  Incorrect Configuration: There may be a misconfiguration in the application’s manifest file, where the data source is either incorrectly defined or not defined at all.
  Versioning Issues: If the application has been updated or modified, there may be discrepancies between the current state of the application and the expected configuration.
  Cache Issues: Sometimes, cached versions of the application can lead to inconsistencies, causing the system to look for a data source that has been removed or renamed.
  
  Solution:
  
  Check the Manifest File: Open the manifest.json file of your UI5 application and verify that the data source you are trying to delete is indeed defined there. If it is not present, you cannot delete it.
  Correct the Configuration: If the data source is incorrectly defined, correct the configuration in the manifest file. Ensure that the data source name matches what you are trying to delete.
  Clear Cache: Clear the browser cache and any server-side cache that might be affecting the application. This can help in ensuring that the latest version of the application is being used.
  Re-deploy the Application: If you have made changes to the manifest file or the application structure, re-deploy the application to ensure that all changes are reflected correctly.
  Check for Dependencies: Ensure that there are no dependencies on the data source you are trying to delete. If other components rely on it, you may need to address those dependencies first.
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for UI5 and Fiori applications for detailed guidelines on managing data sources and the manifest file.
  SAP Community: Engage with the SAP Community forums where developers discuss similar issues and share solutions.
  Debugging Tools: Use browser developer tools to inspect network requests and console logs for additional error messages that may provide more context about the issue.
  
  By following these steps, you should be able to resolve the error message and successfully manage your data sources in the SAP UI5 application.