Comment 3 for bug 655371

Hi Sven,

This means one of the bzr repository files has been truncated to 0 bytes. This typically happens because of a machine crash or filesystem error beyond bzr's control.

To fix this you should be able to:
1- make a backup of the whole repository
2- move the c11dbecfe3a92f616a9be65a0f2b099f pack and index files out of the repository
3- run 'bzr pack'

I also filed bug 655503 for this.