NuGet Warning NU3011
Package 'SamplePackage v1.0.0' from source 'https://contoso.com/index.json': The primary signature is invalid.
Issue
NuGet client was unable to read the certificate chain for the signing certificate used to sign the package.
Solution
Please request the package author to re-sign the package using the nuget sign
command as described in NuGet docs. If the problem persists, then please file an issue at NuGet/Home along with the package that generated this problem.
Note
When NuGet’s signature validation mode is set to accept (default), NU3011 is raised as a warning.
When NuGet’s signature validation mode is set to require, or when running the nuget verify -signatures
command, NU3011 is elevated from a warning to an error.