docs: Update Troubleshooting with NuGet.Config issue

[VaclavElias]

Issue: The install program (Launcher) on the PC only finds the 3.x versions and no 4.x

Solution

Look at the different NuGet.config files on your machines (esp. %appdata%\NuGet\NuGet.Config). Finding only version 3x means it is not checking against nuget.org as a source.

From Discord:

Thanks for the info and help, in the directory was a file “nuget.config” (lower case) with the content :

<?xml version="1.0" encoding="utf-8"?>
<configuration>
  <packageSources>
    <add key="Stride" value="https://packages.stride3d.net/nuget" />
  </packageSources>
</configuration>

on my laptop/notebook was the file “NuGet.Config” with the content :

<?xml version="1.0" encoding="utf-8"?>
<configuration>
  <packageSources>
    <add key="nuget.org" value="https://api.nuget.org/v3/index.json" protocolVersion="3" />
  </packageSources>
</configuration>

After I deleted the file on my PC, the Stride installer created the same file with the same content as on the notebook and it worked immediately.

Update accordingly:

• https://doc.stride3d.net/latest/en/manual/get-started/install-stride.html
• https://doc.stride3d.net/latest/en/manual/troubleshooting/index.html