Repo sync nicht initialisiert CM13 arbeiten Baum

immer wenn ich versuche zu synchronisieren, CM13 Quellen, ich bekomme diese Fehlermeldung:

panos@ubuntu:~/android/cm13$ repo sync -l
Syncing work tree:  67% (344/512)  fatal: This operation must be run in a work tree
Traceback (most recent call last):
  File "/home/panos/android/cm13/.repo/repo/main.py", line 531, in <module>
    _Main(sys.argv[1:])
  File "/home/panos/android/cm13/.repo/repo/main.py", line 507, in _Main
    result = repo._Run(argv) or 0
  File "/home/panos/android/cm13/.repo/repo/main.py", line 180, in _Run
    result = cmd.Execute(copts, cargs)
  File "/home/panos/android/cm13/.repo/repo/subcmds/sync.py", line 769, in Execute
    project.Sync_LocalHalf(syncbuf, force_sync=opt.force_sync)
  File "/home/panos/android/cm13/.repo/repo/project.py", line 1247, in Sync_LocalHalf
    self._InitWorkTree(force_sync=force_sync)
  File "/home/panos/android/cm13/.repo/repo/project.py", line 2393, in _InitWorkTree
    raise GitError("cannot initialize work tree")
error.GitError: cannot initialize work tree

...und hier ist der "repo --trace-sync -l"

: export GIT_DIR=/home/panos/android/cm13/.repo/projects/hardware/qcom/audio-caf/msm8996.git
: git rev-parse --verify refs/remotes/github/cm-13.0-caf-8996^0 1>| 2>|

: cd /home/panos/android/cm13/hardware/qcom/audio-caf/msm8996
: git read-tree --reset -u -v HEAD 1>| 2>|
fatal: This operation must be run in a work tree
Traceback (most recent call last):
  File "/home/panos/android/cm13/.repo/repo/main.py", line 531, in <module>
    _Main(sys.argv[1:])
  File "/home/panos/android/cm13/.repo/repo/main.py", line 507, in _Main
    result = repo._Run(argv) or 0
  File "/home/panos/android/cm13/.repo/repo/main.py", line 180, in _Run
    result = cmd.Execute(copts, cargs)
  File "/home/panos/android/cm13/.repo/repo/subcmds/sync.py", line 769, in Execute
    project.Sync_LocalHalf(syncbuf, force_sync=opt.force_sync)
  File "/home/panos/android/cm13/.repo/repo/project.py", line 1247, in Sync_LocalHalf
    self._InitWorkTree(force_sync=force_sync)
  File "/home/panos/android/cm13/.repo/repo/project.py", line 2393, in _InitWorkTree
    raise GitError("cannot initialize work tree")
error.GitError: cannot initialize work tree

Habe ich schon wiederholt "repo sync" (was Sie sehen, ist "repo sync -l", die nur synchronisiert die Arbeit, die Struktur lokal)

Jede Hilfe wird sehr geschätzt. Vielen Dank im Voraus 😀