Can't restore NuGet packages from Rider. Need to 'dotnet restore' from Terminal

Problem

Rider fails to restore NuGet packages. One has to run dotnet restore command manually to restore packages in a solution.

Cause

It is not possible to determine the exact cause of the issue without extra diagnostic information.

Resolution

If private NuGet feeds hosted in Amazon/Azure are being used, do the following:

1. Go to File | Settings | Build, Execution, Deployment | NuGet
2. Set Credential Provider to NuGet/.NET CLI plugins.

If that doesn't help, collect the additional information:

1. Go to Help | Diagnostic Tools | Choose Trace Scenarios;
2. Enable NuGet All, NuGetSearch trace scenarios;
3. Reproduce the issue;
4. Make a screenshot (or a recording that demonstrates the issue);
5. Share the output in the NuGet toolwindow | Log tab;
6. Collect logs via Help | Collect Logs and Diagnostic Data;
7. Disable the trace scenarios enabled;
8. Share all the information with the support team via Help | Contact Support.