How do I make this auth error go away when doing my automated builds?

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Peter
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Peter asked on 07 Nov 2025, 08:54 PM

What does this mean? I think it means I'm not logging in for builds, but I put in the right username\pwd. Why is this showing up?

"c:\code\Avanti15\Applications\Operations\ShopFloor\ShopFloor_fq4img1v_wpftmp.csproj" (_CompileTemporaryAssembly target) (83) ->
  c:\code\Avanti15\Applications\Operations\ShopFloor\ShopFloor_fq4img1v_wpftmp.csproj : warning NU1900: Error occurred while getting package vulnerability data: Unable to load the service index for source https://nuget.telerik.com/v3/index.json.

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Martin Ivanov
Telerik team
answered on 10 Nov 2025, 08:14 PM

Hello Peter,

Due to a recent change in the login functionality for the nuget.telerik.com package source you no longer can login to with your telerik.com username and password. Instead, you should generate an use an API Key as the password and "api-key" as the username.

Regards,
Martin Ivanov
Progress Telerik

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Peter
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commented on 14 Nov 2025, 10:09 PM

Hello. I am still having this unable to get dependencies from the telerik nuget server due to authentication. Can I arrange to actually speak to someone please? I am very disillusioned with the telerik controls. Please help me. I have support tickets I can use up, I need to get this working, please help. Going back and forth here is just making me avoid this problem and it's not getting any better. :<
Peter
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commented on 14 Nov 2025, 10:10 PM

I have generated an API key, but obviously something is not working and mis configured. I'm still getting auth errors.

dotnet restore c:\code\avanti15\avanti15.sln --force
    c:\code\avanti15\Applications\Tools\Setups\NumberStreamsMaintenance\NumberStreamsMaintenance.csproj : error NU1301:
      Unable to load the service index for source https://nuget.telerik.com/v3/index.json.
        Response status code does not indicate success: 401 (Unauthorized).
    c:\code\avanti15\Applications\Tools\Setups\OvertimeCodesMaintenance\OvertimeCodesMaintenance.csproj : error NU1301:
      Unable to load the service index for source https://nuget.telerik.com/v3/index.json.
        Response status code does not indicate success: 401 (Unauthorized).
    c:\code\avanti15\Applications\Tools\Setups\MachineCodesMaintenance\MachineCodesMaintenance.csproj : error NU1301:
      Unable to load the service index for source https://nuget.telerik.com/v3/index.json.
        Response status code does not indicate success: 401 (Unauthorized).
    c:\code\avanti15\Applications\Tools\Setups\LostCodesMaintenance\LostCodesMaintenance.csproj : error NU1301:
      Unable to load the service index for source https://nuget.telerik.com/v3/index.json.
        Response status code does not indicate success: 401 (Unauthorized).
    c:\code\avanti15\Applications\Tools\Setups\InvoiceTermsMaintenance\InvoiceTermsMaintenance.csproj : error NU1301:
      Unable to load the service index for source https://nuget.telerik.com/v3/index.json.
        Response status code does not indicate success: 401 (Unauthorized).
    c:\code\avanti15\Applications\Tools\Setups\InvoiceControlCodesMaintenance\InvoiceControlCodesMaintenance.csproj : error NU1301:
      Unable to load the service index for source https://nuget.telerik.com/v3/index.json.
        Response status code does not indicate success: 401 (Unauthorized).
    c:\code\avanti15\Applications\Tools\Setups\HolidayCalendarsMaintenance\HolidayCalendarsMaintenance.csproj : error NU1301:
      Unable to load the service index for source https://nuget.telerik.com/v3/index.json.
        Response status code does not indicate success: 401 (Unauthorized).
    c:\code\avanti15\Applications\Tools\Setups\EmployeesMaintenance\EmployeesMaintenance.csproj : error NU1301:
      Unable to load the service index for source https://nuget.telerik.com/v3/index.json.
        Response status code does not indicate success: 401 (Unauthorized).
    c:\code\avanti15\Applications\Tools\Setups\CostCentersMaintenance\CostCentersMaintenance.csproj : error NU1301:
      Unable to load the service index for source https://nuget.telerik.com/v3/index.json.
        Response status code does not indicate success: 401 (Unauthorized).
    c:\code\avanti15\Applications\Tools\Setups\ContactTypesMaintenance\ContactTypesMaintenance.csproj : error NU1301:
      Unable to load the service index for source https://nuget.telerik.com/v3/index.json.
        Response status code does not indicate success: 401 (Unauthorized).
    c:\code\avanti15\Applications\Tools\Setups\CompanyTypesMaintenance\CompanyTypesMaintenance.csproj : error NU1301:
      Unable to load the service index for source https://nuget.telerik.com/v3/index.json.
        Response status code does not indicate success: 401 (Unauthorized).
    c:\code\avanti15\Applications\Tools\Setups\CompanyMaintenance\CompanyMaintenance.csproj : error NU1301:
      Unable to load the service index for source https://nuget.telerik.com/v3/index.json.
        Response status code does not indicate success: 401 (Unauthorized).
    C:\Program Files\dotnet\sdk\9.0.307\NuGet.targets(186,5): error :
      Failed to download package 'System.Data.SqlClient.4.9.0' from 'https://api.nuget.org/v3-flatcontainer/system.data.sqlclient/4.9.0/system.data.sqlclient.4.9.0.nupkg'.
      A task was canceled.
    C:\Program Files\dotnet\sdk\9.0.307\NuGet.targets(186,5): error :
      Failed to download package 'Microsoft.Extensions.Primitives.9.0.0' from 'https://api.nuget.org/v3-flatcontainer/microsoft.extensions.primitives/9.0.0/microsoft.extensions.primitives.9.0.0.nupkg'.
      A task was canceled.
    C:\Program Files\dotnet\sdk\9.0.307\NuGet.targets(186,5): error :
      Failed to download package 'System.Diagnostics.DiagnosticSource.8.0.1' from 'https://api.nuget.org/v3-flatcontainer/system.diagnostics.diagnosticsource/8.0.1/system.diagnostics.diagnosticsource.8.0.
      1.nupkg'.
      A task was canceled.
    C:\Program Files\dotnet\sdk\9.0.307\NuGet.targets(186,5): warning : The file 'C:\Users\petehenr\AppData\Local
Martin Ivanov
Telerik team
commented on 18 Nov 2025, 11:31 AM | edited

The remote web assistance procedure is described here. Basically, you should open a new support ticket from your telerik.com account and request a meeting (in plain text). However, keep in mind this service is available only with the Ultimate support plan.

In the meantime, you can try to reset your Telerik nuget credentials as shown here.

Peter
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commented on 18 Nov 2025, 07:54 PM | edited

Thank you. I'm trying out the setting of the api-key as the user name. I was originally thinking I needed my account name for that. I guess I skipped that part, sped read over it, or something, but I missed it. I'm trying it out now.

 

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