NuGet.Config misconfiguration

Unable to resolve Stride.GameStudio

If you encounter the error:

Error: Unable to resolve 'Stride.GameStudio (>= 4.2.0.2381)' for 'net8.0-windows7.0'.

Exception

Could not restore package Stride.GameStudio
at Stride.Core.Packages.NugetStore.InstallPackage(String packageId, PackageVersion version, IEnumerable`1 targetFrameworks, ProgressReport progress)
at Stride.LauncherApp.ViewModels.PackageVersionViewModel.<>c__DisplayClass55_0.<b__0>d.MoveNext()

This usually means your NuGet package sources are misconfigured.

How to fix

1. Locate your NuGet configuration file:
   • C:\Users\YourUserName\AppData\Roaming\NuGet\NuGet.Config
2. Make a backup of the file before editing.
3. Open the file and ensure it contains the following lines:

   <?xml version="1.0" encoding="utf-8"?>
   <configuration>
     <packageSources>
       <add key="nuget.org" value="https://api.nuget.org/v3/index.json" protocolVersion="3" />
       <add key="Stride Dev" value="C:\Users\YourUserName\AppData\Local\Stride\NugetDev" />
     </packageSources>
   </configuration>
   

4. Save the file and try restoring packages again.

The launcher only finds 3.x versions, not 4.x

If the install program (Launcher) only shows Stride 3.x versions and not 4.x, your NuGet.Config file is likely missing the nuget.org package source.

How to fix

1. Open your NuGet configuration file:
   • C:\Users\YourUserName\AppData\Roaming\NuGet\NuGet.Config
2. Make a backup before editing.
3. Ensure your NuGet.Config contains at least the following:

   <?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>
   

4. Save the file and restart the Launcher.

You should now see the latest Stride 4.x versions available for installation.