Telerik NuGet Feed Troubleshooting

This article summarizes the issues that may occur when you work with the Telerik UI for .NET MAUI library and the online Telerik NuGet feed, and their solutions.

The issues listed below are common when upgrading to a new version of Telerik .NET MAUI. Follow the link next to each issue to find the solution.

• Errors like Unable to load server index for source can be related to network connectivity—The solution is to check the additional error information and the connection to the Telerik NuGet server.
• If you suspect that your saved credentials are wrong—Review the removing stored credentials topic for more details on the steps you need to follow to solve this error.
• 401 Unauthorized
• 401 Logon failed error
• Error like Unable to find the Telerik.UI.for.Maui package in nuget.org occurs when the Telerik NuGet source is searched in wrong NuGet—Review the Unable to Find Package article for more details on this case.
• Error 503 Service Unavailable
• Errors like Unable to find package Telerik.UI.for.Maui with version and ProjectName depends on Telerik.UI.for.Maui (>= 7.1.0) but Telerik.UI.for.Maui 7.1.0 was not found can be related to the subscription period—Review the Package Version Not Found article for more details on how to solve this behavior.
• Error Failed to retrieve information about ... from remote source occurs when using the v2 server—The solution is to use the v3 NuGet feed.

Quick Access Test (Credentials or Network Access)

You can quickly test your credentials or a specific package search results, the NuGet server is a REST service that can be accessed with a standard web browser. Try the following steps:

1. Open a new in-private/incognito browser session/tab.
2. Confirm Credentials:
   1. Enter https://nuget.telerik.com/v3/index.json in the address bar and hit Enter.
   2. The web browser will prompt you to login, enter the credentials you want to test. You can test either:
      • Telerik Account credentials (email address and password)
      • Telerik NuGet Key (username "api-key", password is the full key value)
   3. You should now see a json result containing the general index listing. This confirms a successful login!
3. Confirm Package Listing
   1. Enter https://nuget.telerik.com/v3/search?q=telerik.ui.for.maui in the address bar and hit Enter.
   2. You should now see a json result containing a list of available packages that match the query.
4. If you want to try again with different credentials (i.e. a different nuget key), close the incognito browser session and open a new one.

Tip If you get an error at any point in this process, review the list above for the specific error message and follow those dedicated instructions. For example, you may need to visit the 401 Unauthorized or 401 Logon failed error articles. Alternatively, if you authenticate and get a json response, but the package version you're expecting isn't listed, the Package Version Not Found article is more relevant.

Telerik NuGet Feed Status

Visit status.telerik.com to check the status of the Telerik NuGet server. The top section shows manually logged incidents with possible updates or workaround suggestions. The System Metrics section provides real-time automated diagnostics.