I have the following nuget config in my project:

<?xml version="1.0" encoding="utf-8"?>
<configuration>
	<packageSources>
		<!--To inherit the global NuGet package sources remove the <clear/> line below -->
		<clear />
		<add key="nuget" value="https://api.nuget.org/v3/index.json" />
		<add key="privateFeed" value="https://pkgs.dev.azure.com/myfunnycompany/_packaging/myfunnycompany/nuget/v3/index.json" />
	</packageSources>
	<packageSourceMapping>
		<packageSource key="privateFeed">
			<package pattern="privatepackage.*" />
		</packageSource>
		<packageSource key="nuget">
			<package pattern="*" />
		</packageSource>
	</packageSourceMapping>
</configuration>

Local with a for expample dotnet restore it works. If I run it in azure devops I get the following error:

path/project.jscproj : error NU1100: Unable to resolve 'privatepackage.numberone (>= 0.1.1-15)' for 'net8.0'. PackageSourceMapping is enabled, the following source(s) were not considered: , feed-privateFeed, nuget. [/path/solution.sln]

In my nuget config the feed is called privateFeed but in the error message feed-privateFeed. That will mean that the source mapping get's invalid.

The issue is produced in the following line:

For me their a two ways to fix the issue:

• stop prefixing the feed.
  • on the current implementation are some nuget issues linked that are maybe important to solve that
• make a string replace in the whole config that adds everywhere the prefix
  • this can be quite complecated because you want only replace sourcekey strings and not other substrings that have maybe the name letters but different meaning