How To Fix /UI2/FDM_PB_CHIP_XML110 - Source '&1' is declared twice

SAP Error Message - Details

• Message type: E = Error

• Message class: /UI2/FDM_PB_CHIP_XML -

• Message number: 110

• Message text: Source '&1' is declared twice

Self-Explanatory Message

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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 /UI2/FDM_PB_CHIP_XML110 - Source '&1' is declared twice ?

  The SAP error message /UI2/FDM_PB_CHIP_XML110 with the description "Source '&1' is declared twice" typically occurs in the context of SAP Fiori or UI5 applications when there is a duplicate declaration of a data source in the XML configuration of a Fiori application.
  Cause:
  This error is usually caused by:
  
  Duplicate Source Declaration: The same data source is declared multiple times in the XML view or component configuration. This can happen if the developer inadvertently copies and pastes code or if there are multiple configurations that reference the same source.
  Incorrect XML Structure: The XML structure may not be properly defined, leading to misinterpretation of the data sources.
  Version Control Issues: If multiple developers are working on the same component and changes are not properly merged, it can lead to duplicate entries.
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Check XML Configuration:
  
  Open the XML file where the error is reported.
  Look for the declaration of the data source (usually within a <dataSources> tag).
  Ensure that each data source is declared only once. If you find duplicates, remove or comment out the redundant declarations.
  
  
  
  Validate XML Structure:
  
  Ensure that the XML structure is valid. You can use XML validation tools or IDE features to check for structural issues.
  
  
  
  Review Version Control:
  
  If you are using a version control system (like Git), review the recent changes to see if any duplicate declarations were introduced.
  Merge changes carefully to avoid conflicts that could lead to duplicates.
  
  
  
  Test the Application:
  
  After making the necessary changes, test the application to ensure that the error is resolved and that the application functions as expected.
  
  
  
  Consult Documentation:
  
  If you are unsure about the correct configuration, refer to the SAP documentation for the specific Fiori application or component you are working with.
  
  
  
  Related Information:
  
  SAP Fiori Documentation: Check the official SAP Fiori documentation for guidelines on configuring data sources and best practices.
  SAP Community: Engage with the SAP Community forums to see if others have encountered similar issues and how they resolved them.
  Debugging Tools: Use browser developer tools to inspect the application and identify where the error is occurring in the UI5 application.
  
  By following these steps, you should be able to identify and resolve the cause of the error message /UI2/FDM_PB_CHIP_XML110.