Traceback (most recent call last):
  File "/dist-packages/trytond/protocols/jsonrpc.py", line 108, in _marshaled_dispatch
    response['result'] = dispatch_method(method, params)
  File "/dist-packages/trytond/protocols/jsonrpc.py", line 147, in _dispatch
    res = dispatch(*args)
  File "/dist-packages/trytond/protocols/dispatcher.py", line 155, in dispatch
    res = getattr(obj, method)(*args_without_context, **kargs)
  File "/dist-packages/trytond/model/modelstorage.py", line 856, in import_data
    raise exp
UnicodeEncodeError: 'ascii' codec can't encode character u'\xe9' in position 30: ordinal not in range(128)