Hello, I am preparing a property in order to setup a debomatic machine but when I try to upload a package I get this error from debomatic

DEBUG: Command '['schroot', '-l']' returned non-zero exit status 1
Traceback (most recent call last):
File "/usr/share/debomatic/Debomatic/process.py", line 197, in _finish
  raise e
File "/usr/lib/python3.5/concurrent/futures/thread.py", line 55, in run
  result = self.fn(*self.args, **self.kwargs)
File "/usr/share/debomatic/Debomatic/build.py", line 525, in run
File "/usr/share/debomatic/Debomatic/build.py", line 133, in _build
File "/usr/share/debomatic/Debomatic/build.py", line 395, in _setup_chroot
  chroots = check_output(['schroot', '-l'], stderr=fd)
File "/usr/lib/python3.5/subprocess.py", line 316, in check_output
File "/usr/lib/python3.5/subprocess.py", line 398, in run
  output=stdout, stderr=stderr)
subprocess.CalledProcessError: Command '['schroot', '-l']' returned non-zero exit status 1

so tried on my own

:/etc/debomatic# schroot -l
E: /etc/schroot/chroot.d/stretch-amd64-sbuild-propellor: [stretch-amd64-sbuild]: Required key ‘directory’ is missing

to my opinion the schroot config file generated by Sbuild property does something wrong.