tracking-panda.xml fecth kernel/panda error

last night I try to get linaro andriod source for my panda board, I encount fetch error.

use tracking-panda.xml can't fetch “kernel/panda”project，the revision is not correct， “GitError: kernel/panda update-ref: fatal: 1010fcd033e01ead0d43d61d30b341b0d4c68d49^0: not a valid SHA1

the repo commands I used: $ repo init -u git://android.git.linaro.org/platform/manifest.git -b linaro-android-12.07-release -m tracking-panda.xml $ repo sync

sunny.