Estoy tratando imprimir un ticket del módulo TPV (sale_pos 3.4.0) y me sale 
este error que puedo hacer para resolverlo.

Traceback (most recent call last):
  File "/local/lib/python2.7/site-packages/trytond/protocols/jsonrpc.py", 
line 150, in _marshaled_dispatch
    response['result'] = dispatch_method(method, params)
  File "/local/lib/python2.7/site-packages/trytond/protocols/jsonrpc.py", 
line 179, in _dispatch
    res = dispatch(*args)
  File 
"/local/lib/python2.7/site-packages/trytond/protocols/dispatcher.py", line 
161, in dispatch
    result = rpc.result(meth(*c_args, **c_kwargs))
  File 
"/lib/python2.7/site-packages/trytonspain_jasper_reports-3.4.0-py2.7.egg/trytond/modules/jasper_reports/jasper.py",
 
line 140, in execute
    report = JasperReports.JasperReport(report_path)
  File 
"/lib/python2.7/site-packages/trytonspain_jasper_reports-3.4.0-py2.7.egg/trytond/modules/jasper_reports/JasperReports/JasperReport.py",
 
line 30, in __init__
    self.extractProperties()
  File 
"/lib/python2.7/site-packages/trytonspain_jasper_reports-3.4.0-py2.7.egg/trytond/modules/jasper_reports/JasperReports/JasperReport.py",
 
line 107, in extractProperties
    doc = etree.parse(self._reportPath)
  File "lxml.etree.pyx", line 3301, in lxml.etree.parse 
(src/lxml/lxml.etree.c:72453)
  File "parser.pxi", line 1791, in lxml.etree._parseDocument 
(src/lxml/lxml.etree.c:105915)
  File "parser.pxi", line 1817, in lxml.etree._parseDocumentFromURL 
(src/lxml/lxml.etree.c:106214)
  File "parser.pxi", line 1721, in lxml.etree._parseDocFromFile 
(src/lxml/lxml.etree.c:105213)
  File "parser.pxi", line 1122, in lxml.etree._BaseParser._parseDocFromFile 
(src/lxml/lxml.etree.c:100163)
  File "parser.pxi", line 580, in 
lxml.etree._ParserContext._handleParseResultDoc 
(src/lxml/lxml.etree.c:94286)
  File "parser.pxi", line 690, in lxml.etree._handleParseResult 
(src/lxml/lxml.etree.c:95722)
  File "parser.pxi", line 620, in lxml.etree._raiseParseError 
(src/lxml/lxml.etree.c:94789)
XMLSyntaxError: Start tag expected, '<' not found, line 1, column 1

Responder a