When I try to deploy I get
$ juju --verbose deploy mysql
2013-09-28 20:25:47 INFO juju.provider.ec2 ec2.go:187 opening environment "amazon" wordpress
2013-09-28 20:25:53 ERROR juju supercommand.go:282 command failed: no instances found error: no instances found
I have edited my .juju/environments.yaml so that the region, access-key, secret-key match my ec2 setup. I have left the admin-secret and control-bucket alone, and I have tried setting them to match the contents of the yaml file on my ec2 installation. I have also tried setting the default-series to 'precise'.
I can log in to ec2 and create instances and volumes.
I also have amazon-cert.pem and amazon-private-key.pem files in my .juju folder.
I have also tried installing wordpress, but get the same error. This is all happening from my OSX Mountain Lion machine, BTW.