Hello, I used to install openErp 7 on a Virtual Machine (debian squeeze) behind varnish for the webforwarding. But when I launch the openErp, I always get this error :

2013-03-18 13:29:17,962 7769 ERROR ? openerp.addons.web.http.JSONRequest.dispatch: An error occured while handling a json request Traceback (most recent call last): File "/opt/openerp/web/addons/web/http.py", line 196, in dispatch self.jsonrequest = simplejson.load(requestf, object_hook=reject_nonliteral) File "/usr/lib/pymodules/python2.6/simplejson/__init__.py", line 328, in load use_decimal=use_decimal, *kw) File "/usr/lib/pymodules/python2.6/simplejson/__init__.py", line 401, in loads return cls(encoding=encoding, *kw).decode(s) File "/usr/lib/pymodules/python2.6/simplejson/decoder.py", line 402, in decode obj, end = self.raw_decode(s, idx=_w(s, 0).end()) File "/usr/lib/pymodules/python2.6/simplejson/decoder.py", line 420, in raw_decode raise JSONDecodeError("No JSON object could be decoded", s, idx) JSONDecodeError: No JSON object could be decoded: line 1 column 0 (char 0)

Does anyone have this before ??

Thank's Sam