Unable to load the service index for source https://api.nuget.org/v3/index.json. [C:\app\aspnetapp.csproj]

Question

https://github.com/dotnet/dotnet-docker-samples/tree/master/aspnetapp

Docker command docker build -t aspnetapp.

I am getting an error for docker bui

Answer 1

I'm suprised no one said this already. This was caused by not having the latest sdk installed. In my case docker was looking for the file

C:\Program Files\dotnet\sdk\3.1.302\NuGet.targets

However this file did not exist on my machine instead I had a different minor version.

C:\Program Files\dotnet\sdk\3.1.301\NuGet.targets

I'm sure they're away to get it working using an older version, but in my case I just updated the downloaded the latest sdk