NuGet Warning NU1302

You are running the 'restore' operation with an 'HTTP' source: myHttpSource. NuGet requires HTTPS sources. To use an HTTP source, you must explicitly set 'allowInsecureConnections' to true in your NuGet.Config file. Please refer to https://aka.ms/nuget-https-everywhere for more information.

Issue

myHttpSource is an insecure HTTP source. We recommend using HTTPS sources instead.

Solution

This can be fixed either by removing the HTTP source or disabling HTTP Errors for the specific source by using allowInsecureConnections option in your NuGet config file.