I got a similar message when trying to install launchpad on my 9.10 Beta system.
$ bzr --no-plugins cat http://bazaar.launchpad.net/~launchpad-pqm/launchpad/devel/utilities/rocketfuel-setup > rocketfuel-setup bzr: ERROR: Invalid http response for http://bazaar.launchpad.net/~launchpad-pqm/launchpad/devel/utilities/rocketfuel-setup/.bzr/branch-format: Unable to handle http code 502: Bad Gateway
I got a similar message when trying to install launchpad on my 9.10 Beta system.
$ bzr --no-plugins cat http:// bazaar. launchpad. net/~launchpad- pqm/launchpad/ devel/utilities /rocketfuel- setup > rocketfuel-setup bazaar. launchpad. net/~launchpad- pqm/launchpad/ devel/utilities /rocketfuel- setup/. bzr/branch- format: Unable to handle http code 502: Bad Gateway
bzr: ERROR: Invalid http response for http://