I have all of the files from the original project. I had to make a new version for the code to work properly. When I try to upload the archive, I get prompted
Enter the password for the selected certificate.
in Visual Studio 2015.
I have no idea what the password is. I thought it would be stored in autocomplete somewhere or in the Developer Console on developer.google.com. Is it the Client Secret? I don't know where that is either. The original project must have the password already because it doesn't prompt me for it when uploading. I looked for in the old .csproj and it was not there.
Deleting and republishing a "new" app isn't really a problem, but I would rather not do it if I don't have to.