Preparing to replace juju 0.7+bzr628+bzr632~raring1 (using .../juju_1.12.0-0ubuntu1~ubuntu13.04.1~juju1_all.deb) ...
Unpacking replacement juju ...
Processing triggers for man-db ...
Setting up juju-core (1.13.2-4~1703~raring1) ...
Setting up juju (1.12.0-0ubuntu1~ubuntu13.04.1~juju1) ...

$ juju stat
error: Unable to connect to environment "".
Please check your credentials or use 'juju bootstrap' to create a new environment.

Error details:
no instances found

$ juju stat -v
2013-08-29 08:57:36 INFO juju.provider.ec2 ec2.go:187 opening environment "amazon"
2013-08-29 08:57:42 ERROR juju supercommand.go:282 command failed: Unable to connect to environment "".
Please check your credentials or use 'juju bootstrap' to create a new environment.

Error details:
no instances found

error: Unable to connect to environment "".
Please check your credentials or use 'juju bootstrap' to create a new environment.

Error details:
no instances found