NuGet Warning NU3032
Scenario 1
Package 'SamplePackage v1.0.0' from source 'https://contoso.com/index.json': The package already contains a repository countersignature. Please remove the existing signature before adding a new repository countersignature.
Issue
A signed package must not contain more than 1 repository countersignature. The package already contained a repository countersignature when attempting to add a new repository countersignature.
Solution
Remove the existing signature before adding a new repository countersignature.
Scenario 2
Package 'SamplePackage v1.0.0' from source 'https://contoso.com/index.json': The package signature contains multiple repository countersignatures.
Issue
The package signature contains multiple repository countersignatures.
Solution
Contact the repository that countersigned the package.