That message appears truncated but given there are no duplicate entries in ImprovedPasswordChecker.fsproj, I think NuGet is warning us a specific version of one of our project’s dependencies wasn’t found and telling us there are two other versions are available.
In local testing, I can confirm the Newtownsoft.Json dependency is both not used in the test suite & example solution and also not available on the test runner. So that’s the immediate culprit for the failure.
However, for @ErikSchierboom, it’s interesting that we got this fragment reported during the project restore. NuGet Error NU1102 | Microsoft Learn indicates the error message should identify the package as well. Are we discarding part of the error message somewhere?