Below is an example. Please don't use colons (as e.g. in an URL) inside work item definitions. There is a low-IQ parser somewhere that gets confused by that.

---------- Forwarded message ----------
From: Launchpad work item tracker <work-items-tracker-hackers@lists.launchpad.net>
Date: 9 January 2012 13:37
Subject: Errors in work item definitions
To: tony.mansson@linaro.org

https://blueprints.launchpad.net/linaro-android/+spec/linaro-android-12.01-release
[ERROR] invalid state "//android-build.linaro.org/builds/~linaro-android/tracking-panda/#build=139" for work item "https"
https://blueprints.launchpad.net/linaro-android/+spec/linaro-android-12.01-release
[ERROR] invalid state "//android-build.linaro.org/builds/~linaro-android/staging-imx53/#build=142" for work item "https"
https://blueprints.launchpad.net/linaro-android/+spec/linaro-android-12.01-release
[ERROR] invalid state "//android-build.linaro.org/builds/~linaro-android/landing-panda/#build=15" for work item "https"
https://blueprints.launchpad.net/linaro-android/+spec/linaro-android-12.01-release
[ERROR] invalid state "//android-build.linaro.org/builds/~linaro-android/landing-snowball/#build=113" for work item "https"
https://blueprints.launchpad.net/linaro-android/+spec/linaro-android-12.01-release
[ERROR] invalid state "//android-build.linaro.org/builds/~linaro-android/staging-panda/#build=184" for work item "https"
https://blueprints.launchpad.net/linaro-android/+spec/linaro-android-12.01-release
[ERROR] invalid state "//android-build.linaro.org/builds/~linaro-android/staging-snowball/#build=154" for work item "https"