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Troubleshooting Cosmos React UI

React introduces new tools and UI functionalities to the Pega Platform environment. While new applications in the 8.5 release automatically support hybrid mode and require no additional maintenance, applications built in previous versions of the Platform might need additional troubleshooting.

Area Issue Solution
Enabling Cosmos React UI The option to enable React UI  in the UI Runtime section of the Definition is not active

For Docker installations, ensure that the parameters and the certificate path are passed correctly. Verify that your Docker log lists the following data:

  • ConstellationUI service is listening on port 3000.
  • ConstellationUI service is using HTTPS
  • URL path is /prweb/constellation
Safari compatibility
  • Missing images
  • App Studio does not respond when configuring Views

If the ConstellationUI service is on a different domain than the Pega Infinity environment, enable cookies and cross-site tracking in the browser's Privacy menu.

Portal main menu Custom page does not appear in the Add menu Ensure that the harness for the page is a relevant record in your UI class hierarchy.

For more information, see Adding a relevant record to your application.

Landing page does not appear in the Add menu Ensure that:
  • The harness for that page is a relevant record for your UI class hierarchy.
  • List views have a data source and defined columns.
For more information, see Adding a relevant record to your application.
List page Data page does not appear in the Data Source menu Ensure that the data page:
  • The harness for that page is a relevant record for your UI class hierarchy.
  • List views have a data source and defined columns.
For more information, see Adding a relevant record to your application.
Table field does not appear in the Add Ensure that the field:
  • Is marked as a relevant record.
  • Is a part of the UI class hierarchy
For more information, see Understanding class hierarchy and inheritance.
Landing page List page does not appear in the Add menu Ensure that the page:
  • Is a landing page.
  • Is a part of the UI class hierarchy.
For more information, see Understanding class hierarchy and inheritance.
Widget does not appear in the Add menu Ensure that the section that holds the widget is tagged as a work area widget in the Settings tab.

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