This is a first for me... I'm importing into an database with no tables from a working backup.
Error
SQL query:
--
-- Dumping data for table `exp_accessories`
--
INSERT INTO `exp_accessories` (`accessory_id`, `class`, `member_groups`, `controllers`, `accessory_version`) VALUES
(1, 'Expressionengine_info_acc', '1|5', 'addons|addons_accessories|addons_extensions|addons_fieldtypes|addons_modules|addons_plugins|admin_content|admin_system|content|content_edit|content_files|content_files_modal|content_publish|design|homepage|members|myaccount|tools|tools_communicate|tools_data|tools_logs|tools_utilities', '1.0'),
(2, 'Developer_acc', '1|5', 'addons|addons_accessories|addons_extensions|addons_fieldtypes|addons_modules|addons_plugins|admin_content|admin_system|content|content_edit|content_files|content_files_modal|content_publish|design|homepage|members|myaccount|tools|tools_communicate|tools_data|tools_logs|tools_utilities', '1.7.1'),
(3, 'Devotee_acc', '1|5', 'addons|addons_accessories|addons_extensions|addons_fieldtypes|addons_modules|addons_plugins|admin_content|admin_system|content|content_edit|co[...]
MySQL said: Documentation
#1062 - Duplicate entry '1' for key 'PRIMARY'