How To Fix /UI5/THEMING_MSGS002 - Theme "&1" doesn't exists (Status 404 for "&2").

SAP Error Message - Details

• Message type: E = Error

• Message class: /UI5/THEMING_MSGS -

• Message number: 002

• Message text: Theme "&1" doesn't exists (Status 404 for "&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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /UI5/THEMING_MSGS002 - Theme "&1" doesn't exists (Status 404 for "&2"). ?

  The SAP error message /UI5/THEMING_MSGS002 Theme "&1" doesn't exist (Status 404 for "&2") typically indicates that the specified theme in your SAP UI5 application is not found or is not properly configured. This can happen for several reasons, and here are some potential causes, solutions, and related information:
  Causes:
  
  Theme Not Deployed: The specified theme may not be deployed in the SAP system.
  Incorrect Theme Name: The theme name provided in the application configuration might be misspelled or incorrect.
  Missing Theme Resources: The resources for the theme may not be available or accessible in the specified path.
  Caching Issues: Sometimes, browser or server caching can lead to outdated references to themes.
  Configuration Issues: The application might not be correctly configured to use the specified theme.
  
  Solutions:
  
  
  Check Theme Deployment:
  
  Ensure that the theme you are trying to use is deployed in the SAP system. You can check this in the SAP Fiori Launchpad or the UI5 Theme Designer.
  
  
  
  Verify Theme Name:
  
  Double-check the theme name in your application configuration (e.g., manifest.json or Component.js) to ensure it matches the deployed theme exactly.
  
  
  
  Inspect Theme Resources:
  
  Use the browser's developer tools (F12) to check the network tab for any 404 errors related to theme resources. This can help identify if the resources are missing or incorrectly referenced.
  
  
  
  Clear Cache:
  
  Clear the browser cache or use an incognito window to ensure that you are not loading cached resources. Additionally, consider clearing the SAP Gateway cache if applicable.
  
  
  
  Check Application Configuration:
  
  Review the application’s configuration files (like manifest.json) to ensure that the theme is correctly referenced. Look for the sap.ui5 section and verify the theme property.
  
  
  
  Use Default Theme:
  
  Temporarily switch to a default theme (like sap_belize or sap_belize_plus) to see if the issue persists. This can help determine if the problem is specific to the custom theme.
  
  
  
  Consult Documentation:
  
  Refer to the SAP UI5 documentation for guidance on theming and ensure that you are following the correct procedures for theme creation and deployment.
  
  
  
  Related Information:
  
  SAP UI5 Theme Designer: This tool allows you to create and manage themes for your SAP UI5 applications. Ensure that the theme is properly created and published.
  SAP Notes: Check for any relevant SAP Notes that might address known issues with theming in your specific version of SAP UI5.
  Community Forums: Engage with the SAP Community or forums like SAP Community Network (SCN) for insights from other developers who may have faced similar issues.
  
  By following these steps, you should be able to identify and resolve the issue related to the theme not being found in your SAP UI5 application.