uma@Server:~/dev/bigbluebutton$ git fetch origin
remote: Counting objects: 15, done.
remote: Compressing objects: 100% (11/11), done.
remote: Total 15 (delta 4), reused 12 (delta 4)
Unpacking objects: 100% (15/15), done.
55773f5..5331573 master -> origin/master
* [new branch] revert-1-master -> origin/revert-1-master
uma@Server:~/dev/bigbluebutton$ git checkout -b my-bbb-branch v0.81-release
fatal: git checkout: updating paths is incompatible with switching branches.
Did you intend to checkout 'v0.81-release' which can not be resolved as commit?
uma@Server:~/dev/bigbluebutton$ git branch -a
master
* my-local-branch
remotes/origin/HEAD -> origin/master
remotes/origin/add-notifications
remotes/origin/add-record-button
remotes/origin/add-utf8-support-for-presentation-names
remotes/origin/bbb-apps-wip
remotes/origin/bbb-bridge-html5
remotes/origin/bbb-lock-settings
remotes/origin/black-theme
remotes/origin/build-for-fp-11
remotes/origin/check-meeting
remotes/origin/connect-bbb-apps-html5
remotes/origin/deskshare-fullscreen-config
remotes/origin/embed-flash-client-in-another-app
remotes/origin/fix-logout-url
remotes/origin/fix-logout-url-call
remotes/origin/fix-rejoin-when-meeting-ends
remotes/origin/fix-whiteboard-to-sync-with-presentation
remotes/origin/global-audio-0.81
remotes/origin/html5-bridge
remotes/origin/html5-bridge-new-events
remotes/origin/implement-conn-api
remotes/origin/implement-join-voice-with-flash
remotes/origin/kansas-hackfest
remotes/origin/make-presentation-use-conn-invoke
remotes/origin/make-users-user-conn-invoke
remotes/origin/master
remotes/origin/merge-polling-module
remotes/origin/merge-polling-with-master
remotes/origin/mod-client-communication
remotes/origin/modify-esl-startup
remotes/origin/move-api-params-to-configxml
remotes/origin/move-code-into-meeting
remotes/origin/new-polling-feature
remotes/origin/polling-modifications
remotes/origin/polling-module
remotes/origin/presentation-js-api
remotes/origin/presentation-utf8-support
remotes/origin/record-playback-mic
remotes/origin/redis-backed-bbb-live-data
remotes/origin/refactor-voice-users
remotes/origin/remove-rtmpt-test
remotes/origin/revert-1-master
remotes/origin/sharedNotes
remotes/origin/split-mic-settings-dialog
remotes/origin/substitute-host-on-config-xml
remotes/origin/support-pin-numbers
remotes/origin/switch-to-conn-invoke
remotes/origin/system-check-page
remotes/origin/trying-out-scala
remotes/origin/update-localization
remotes/origin/upgrade-gradle
remotes/origin/upgrade-to-grails-1.3.9
remotes/origin/upgrade-to-grails-2.3
remotes/origin/upgrade-to-red5-1.0.2-M1
remotes/origin/upgrade-to-scala-2.10.2
remotes/origin/upgrading-gradle
remotes/origin/use-conn-for-voice
remotes/origin/v0.81-javau51-update
remotes/origin/v0.81-release
remotes/origin/voice-breakout
remotes/upstream/add-notifications
remotes/upstream/add-record-button
remotes/upstream/add-utf8-support-for-presentation-names
remotes/upstream/bbb-apps-wip
remotes/upstream/bbb-bridge-html5
remotes/upstream/bbb-lock-settings
remotes/upstream/black-theme
remotes/upstream/build-for-fp-11
remotes/upstream/check-meeting
remotes/upstream/connect-bbb-apps-html5
remotes/upstream/deskshare-fullscreen-config
remotes/upstream/embed-flash-client-in-another-app
remotes/upstream/fix-logout-url
remotes/upstream/fix-logout-url-call
remotes/upstream/fix-rejoin-when-meeting-ends
remotes/upstream/fix-whiteboard-to-sync-with-presentation
remotes/upstream/global-audio-0.81
remotes/upstream/html5-bridge
remotes/upstream/html5-bridge-new-events
remotes/upstream/implement-conn-api
remotes/upstream/implement-join-voice-with-flash
remotes/upstream/kansas-hackfest
remotes/upstream/make-presentation-use-conn-invoke
remotes/upstream/make-users-user-conn-invoke
remotes/upstream/master
remotes/upstream/merge-polling-module
remotes/upstream/merge-polling-with-master
remotes/upstream/mod-client-communication
remotes/upstream/modify-esl-startup
remotes/upstream/move-api-params-to-configxml
remotes/upstream/move-code-into-meeting
remotes/upstream/new-polling-feature
remotes/upstream/polling-modifications
remotes/upstream/polling-module
remotes/upstream/presentation-js-api
remotes/upstream/presentation-utf8-support
remotes/upstream/record-playback-mic
remotes/upstream/redis-backed-bbb-live-data
remotes/upstream/refactor-voice-users
remotes/upstream/remove-rtmpt-test
remotes/upstream/sharedNotes
remotes/upstream/split-mic-settings-dialog
remotes/upstream/substitute-host-on-config-xml
remotes/upstream/support-pin-numbers
remotes/upstream/switch-to-conn-invoke
remotes/upstream/system-check-page
remotes/upstream/trying-out-scala
remotes/upstream/update-localization
remotes/upstream/upgrade-gradle
remotes/upstream/upgrade-to-grails-1.3.9
remotes/upstream/upgrade-to-grails-2.3
remotes/upstream/upgrade-to-red5-1.0.2-M1
remotes/upstream/upgrade-to-scala-2.10.2
remotes/upstream/upgrading-gradle
remotes/upstream/use-conn-for-voice
remotes/upstream/v0.81-javau51-update
remotes/upstream/v0.81-release
remotes/upstream/voice-breakout
uma@Server:~/dev/bigbluebutton$
Thanks ,
Madhukar