I use OpenOffice Writer 3.4.1 to design my own quotation/order report. From there, I generate the rml file and send to server as per the procedure. I have a test installation running on windows and a production installation running on Ubuntu.

For the sake of testing, I have created a small table with 5 cells. In the middle one I have added the formula:

[[ removeParentNode('para') ]]

When I generate the pdf file from OpenERP, it works fine and the cell is empty.

If I change the formula in order to suppress the cell:

[[ removeParentNode('td') ]]

I get an error message on the production server only:

type 'exceptions.AssertionError'>, AssertionError(), <traceback object at 0x7ff5750bff38

But I don't get the error message on the windows installation.

I have restarted the openerp server but it hasn't changed anything. I know I am using the latest version of my rml file as I can see the various testing phases. I have sent the report to both servers.

Here is the what the log says specifically for this problem:

2013-04-03 13:11:00,733 1621 ERROR ? openerp.service.web_services: Exception: 
Traceback (most recent call last):

  File "/home/download/openerp-6.1-20121008-233119/openerp/service/web_services.py", line 727, in go
(result, format) = obj.create(cr, uid, ids, datas, context)

  File "/home/download/openerp-6.1-20121008-233119/openerp/report/report_sxw.py", line 442, in create
fnct_ret = fnct(cr, uid, ids, data, report_xml, context)

  File "/home/download/openerp-6.1-20121008-233119/openerp/report/report_sxw.py", line 511, in create_source_pdf
return self.create_single_pdf(cr, uid, ids, data, report_xml, context)

  File "/home/download/openerp-6.1-20121008-233119/openerp/report/report_sxw.py", line 533, in create_single_pdf
pdf = create_doc(etree.tostring(processed_rml),rml_parser.localcontext,logo,title.encode('utf8'))

  File "/home/download/openerp-6.1-20121008-233119/openerp/report/interface.py", line 207, in create_pdf
obj.render()

  File "/home/download/openerp-6.1-20121008-233119/openerp/report/render/render.py", line 59, in render
self._result = self._render()

  File "/home/download/openerp-6.1-20121008-233119/openerp/report/render/rml.py", line 41, in _render
return rml2pdf.parseNode(self.rml, self.localcontext, images=self.bin_datas, path=self.path,title=self.title)

  File "/home/download/openerp-6.1-20121008-233119/openerp/report/render/rml2pdf/trml2pdf.py", line 1007, in parseNode
r.render(fp)

  File "/home/download/openerp-6.1-20121008-233119/openerp/report/render/rml2pdf/trml2pdf.py", line 314, in render
pt_obj.render(el)

  File "/home/download/openerp-6.1-20121008-233119/openerp/report/render/rml2pdf/trml2pdf.py", line 983, in render
fis += r.render(node_story)

  File "/home/download/openerp-6.1-20121008-233119/openerp/report/render/rml2pdf/trml2pdf.py", line 877, in render
return process_story(node_story)

  File "/home/download/openerp-6.1-20121008-233119/openerp/report/render/rml2pdf/trml2pdf.py", line 870, in process_story
flow = self._flowable(node)

  File "/home/download/openerp-6.1-20121008-233119/openerp/report/render/rml2pdf/trml2pdf.py", line 793, in _flowable
return  self._table(node)

  File "/home/download/openerp-6.1-20121008-233119/openerp/report/render/rml2pdf/trml2pdf.py", line 697, in _table
assert length == len(node.get('colWidths').split(','))
AssertionError

2013-04-03 13:11:00,882 1621 ERROR ? openerp.netsvc: 
(<type 'exceptions.AssertionError'>, AssertionError(), <traceback object at 0x7ff5750bff38)

So if anyone has an idea out there, it will be most welcome!