How to resolve: ValueError: can only parse strings

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1 
    Traceback (most recent call last):
  File "/trytond/wsgi.py", line 73, in dispatch_request
    return endpoint(request, **request.view_args)
  File "/trytond/protocols/dispatcher.py", line 46, in rpc
    request, database_name, *request.rpc_params)
  File "/trytond/wsgi.py", line 44, in auth_required
    return wrapped(*args, **kwargs)
  File "/trytond/protocols/wrappers.py", line 122, in wrapper
    return func(request, pool, *args, **kwargs)
  File "/trytond/protocols/dispatcher.py", line 176, in _dispatch
    result = rpc.result(meth(*c_args, **c_kwargs))
  File "/trytond/model/modelview.py", line 347, in fields_view_get
    result['field_childs'])
  File "/trytond/model/modelview.py", line 462, in _view_look_dom_arch
    fields_width=fields_width)
  File "/trytond/model/modelview.py", line 627, in __view_look_dom
    fields_width=fields_width, fields_attrs=fields_attrs)
  File "/trytond/model/modelview.py", line 627, in __view_look_dom
    fields_width=fields_width, fields_attrs=fields_attrs)
  File "/trytond/model/modelview.py", line 627, in __view_look_dom
    fields_width=fields_width, fields_attrs=fields_attrs)
  File "/trytond/model/modelview.py", line 564, in __view_look_dom
    views = get_views(relation, view_ids, mode)
  File "/trytond/model/modelview.py", line 541, in get_views
    Relation.fields_view_get(view_type=view_type))
  File "/trytond/model/modelview.py", line 298, in fields_view_get
    tree = etree.fromstring(result['arch'], parser=parser)
  File "src/lxml/etree.pyx", line 3236, in lxml.etree.fromstring
  File "src/lxml/parser.pxi", line 1875, in lxml.etree._parseMemoryDocument
ValueError: can only parse strings

How can i resolve this bug??

2

Probably the file of the XML view does not exist (or it is empty).

Either the filename in the “name” field of the view, or the filename in view/xxxx.xml is wrong.

4

As the message is not clear enough, I filled Issue 9940: Better error message when XML is missing for a view - Tryton issue tracker

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