Yes I also have same error, after making very detailed installation and noticing all possible bugs and details, always have this error:

Traceback (most recent call last): File "/home/admin/openerp7/presta2/connector/queue/worker.py", line 122, in run_job job.perform(session) File "/home/admin/openerp7/presta2/connector/queue/job.py", line 465, in perform self.result = self.func(session, self.args, *self.kwargs) File "/home/admin/openerp7/presta2/prestashoperpconnect/unit/export_synchronizer.py", line 205, in export_record return exporter.run(binding_id, fields=fields) File "/home/admin/openerp7/presta2/prestashoperpconnect/unit/export_synchronizer.py", line 81, in run self.binder.bind(self.prestashop_id, self.binding_id) File "/home/admin/openerp7/presta2/prestashoperpconnect/unit/binder.py", line 138, in bind context=context File "/home/admin/openerp7/presta2/connector/producer.py", line 52, in write result = write_original(self, cr, uid, ids, vals, context=context) File "/home/admin/openerp7/server/openerp/osv/orm.py", line 4201, in write upd1.append(self._columns[field]._symbol_set1) File "/home/admin/openerp7/server/openerp/osv/fields.py", line 174, in <lambda> _symbol_f = lambda x: int(x or 0)

ValueError: invalid literal for int() with base 10: "{'prestashop': {'product': {'date_add': '2014-03-29 22:07:39', 'ean13': '1234567890005', 'id_default_image': {'attrs': {'not_filterable': 'true'}, 'value': ''}, 'advanced_stock_management': '', 'cache"

Any comments or help will be grateful. If you know the solution I will post in this forum. Any person are welcome to contact me about this issue, to my email borisg26@gmail.com