I have plugin.wgn and plugin.yaml. Running `cfy plugins upload plugin.wgn -y plugin.yaml` works fine.
Steps to reproduce problem:
1. scp the files to the manager:
`scp -i key plugin.wgn centos@MANAGER_IP:/home/centos/plugin.wgn`
`scp -i key plugin.yaml centos@MANAGER_IP:/home/centos/plugin.yaml`
2. ssh into manager and run
`cfy plugins upload plugin.wgn -y plugin.yaml`
You'll get an error saying something like:
I know it sounds weird, but it reproduces for me.