How To Fix /UI2/CORE_FES002 - Class &1 does not exist

SAP Error Message - Details

• Message type: E = Error

• Message class: /UI2/CORE_FES -

• Message number: 002

• Message text: Class &1 does not exist

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 /UI2/CORE_FES002 - Class &1 does not exist ?

  The SAP error message /UI2/CORE_FES002 Class &1 does not exist typically indicates that the system is unable to find a specific class that is required for the functionality you are trying to access. This error is often related to the SAP Fiori/UI5 framework, which relies on various classes and components to render applications.
  Cause:
  
  
  Missing Class: The specified class (denoted by &1 in the error message) is not available in the system. This could be due to:
  
  The class not being activated.
  The class not being installed or transported correctly.
  A typo in the class name or incorrect configuration.
  
  
  
  System Configuration Issues: There may be issues with the configuration of the SAP Fiori/UI5 environment, such as missing components or incorrect settings.
  
  
  Version Mismatch: The version of the SAP Fiori/UI5 components may not be compatible with the version of the backend system.
  
  
  Solution:
  
  
  Check Class Existence:
  
  Use transaction code SE24 (Class Builder) to check if the class exists in the system. If it does not exist, you may need to create it or transport it from another system.
  
  
  
  Activate the Class:
  
  If the class exists but is not activated, activate it using transaction SE24.
  
  
  
  Check Transport Requests:
  
  Ensure that all necessary transport requests have been imported correctly into the system. If the class is part of a transport, verify that the transport was successful.
  
  
  
  Review Configuration:
  
  Check the configuration settings for the Fiori/UI5 applications. Ensure that all necessary components are installed and configured correctly.
  
  
  
  Check for Updates:
  
  Ensure that your SAP system is up to date with the latest patches and updates, as this can resolve compatibility issues.
  
  
  
  Consult Documentation:
  
  Refer to SAP Notes and documentation related to the specific Fiori/UI5 application you are working with. There may be known issues or additional steps required for setup.
  
  
  
  Contact SAP Support:
  
  If the issue persists after checking the above points, consider reaching out to SAP Support for further assistance.
  
  
  
  Related Information:
  
  Transaction Codes: SE24 (Class Builder), SE80 (Object Navigator), and ST22 (Dump Analysis) can be useful for troubleshooting.
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error or provide additional troubleshooting steps.
  Fiori/UI5 Documentation: Review the official SAP Fiori and UI5 documentation for guidance on class management and application setup.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution.