python - Django loaddata error doesn't show message -

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i have mezzanine app , purpose move data sqlite3 prostgres. found solution solved erors. have wrong again , can't understand happend because got name of error django.db.utils.dataerror. here full traceback:

manage.py loaddata dump.json

traceback (most recent call last):   file "d:\gitrepos\newbesturfu\manage.py", line 14, in <module>     execute_from_command_line(sys.argv)   file "c:\python27\lib\site-packages\django\core\management\__init__.py", line 338, in execute_from_command_line     utility.execute()   file "c:\python27\lib\site-packages\django\core\management\__init__.py", line 330, in execute     self.fetch_command(subcommand).run_from_argv(self.argv)   file "c:\python27\lib\site-packages\django\core\management\base.py", line 393, in run_from_argv     self.execute(*args, **cmd_options)   file "c:\python27\lib\site-packages\django\core\management\base.py", line 444, in execute     output = self.handle(*args, **options)   file "c:\python27\lib\site-packages\django\core\management\commands\loaddata.py", line 60, in handle     self.loaddata(fixture_labels)   file "c:\python27\lib\site-packages\django\core\management\commands\loaddata.py", line 90, in loaddata     self.load_label(fixture_label)   file "c:\python27\lib\site-packages\django\core\management\commands\loaddata.py", line 147, in load_label     obj.save(using=self.using)   file "c:\python27\lib\site-packages\django\core\serializers\base.py", line 173, in save     models.model.save_base(self.object, using=using, raw=true)   file "c:\python27\lib\site-packages\django\db\models\base.py", line 738, in save_base     updated = self._save_table(raw, cls, force_insert, force_update, using, update_fields)   file "c:\python27\lib\site-packages\django\db\models\base.py", line 803, in _save_table     forced_update)   file "c:\python27\lib\site-packages\django\db\models\base.py", line 853, in _do_update     return filtered._update(values) > 0   file "c:\python27\lib\site-packages\django\db\models\query.py", line 580, in _update     return query.get_compiler(self.db).execute_sql(cursor)   file "c:\python27\lib\site-packages\django\db\models\sql\compiler.py", line 1062, in execute_sql     cursor = super(sqlupdatecompiler, self).execute_sql(result_type)   file "c:\python27\lib\site-packages\django\db\models\sql\compiler.py", line 840, in execute_sql     cursor.execute(sql, params)   file "c:\python27\lib\site-packages\django\db\backends\utils.py", line 79, in execute     return super(cursordebugwrapper, self).execute(sql, params)   file "c:\python27\lib\site-packages\django\db\backends\utils.py", line 64, in execute     return self.cursor.execute(sql, params)   file "c:\python27\lib\site-packages\django\db\utils.py", line 97, in __exit__     six.reraise(dj_exc_type, dj_exc_value, traceback)   file "c:\python27\lib\site-packages\django\db\backends\utils.py", line 64, in execute     return self.cursor.execute(sql, params) django.db.utils.dataerror

i use windows 10, django 1.8.3 , postgresql 9.4.

does know how show full error message or may know how rid of issue?


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