Why the NuGet doesn't copy some dlls as in packages.config

I have a problem where I want to copy Google.Authenticator.dll nuget from C:\ProjectX\packages into C:\ProjectX\project.Web\Bin.Here what I done so far:

• cleared the nuget cache
• update the nuget nuget update -selfBut it not working.

The package I have is Google.Authenticator , in the packages.config I have

But it doesn't pick that dll and copy it across.