oneconf-service crashed with OSError in save_json_file_update(): [Errno 2] No such file or directory

this happened during "aptitude full-upgrade"
with beta release 12.10

ProblemType: Crash
DistroRelease: Ubuntu 12.10
Package: oneconf 0.2.9.1
ProcVersionSignature: Ubuntu 3.5.0-13.14-generic 3.5.3
Uname: Linux 3.5.0-13-generic i686
ApportVersion: 2.5.1-0ubuntu4
Architecture: i386
CrashCounter: 1
Date: Wed Sep 5 20:02:14 2012
ExecutablePath: /usr/share/oneconf/oneconf-service
InterpreterPath: /usr/bin/python2.7
PackageArchitecture: all
ProcCmdline: /usr/bin/python /usr/share/oneconf/oneconf-service
ProcEnviron:
 SHELL=/bin/bash
 PATH=(custom, no user)
 LANG=de_AT.UTF-8
PythonArgs: ['/usr/share/oneconf/oneconf-service']
SourcePackage: oneconf
Title: oneconf-service crashed with OSError in save_json_file_update(): [Errno 2] No such file or directory
UpgradeStatus: Upgraded to quantal on 2012-01-21 (227 days ago)
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