In my question here I managed to push one package to my feed, however I now get an Access is denied error.
According to this question I should be prompted for user name and password. This did occur for the package I managed to push, but it no longer occurs.
What do I need to do?
Studying the docs
this issue on Git is relevant
[Update]
Something strange has happened to my folder. I get the error if I just type Nuget at the dos prompt. If I create a new folder and extract nugetcredentialprovider.zip into it, then run Nuget I don't get the error
the cli reference
push reference
configuring nuget behaviour