Error while upgrading from 1.5 ro 2.0.1.0

Please help.
have received following error message while upgrading to 2.0.1.0


Notice: Error: Can't DROP 'option_value'; check that column/key exists
Error No: 1091
ALTER TABLE `oc_product_option` DROP `option_value` in /websites/123reg/LinuxPackage22/ta/xc/it/taxcite.co.uk/public_html/oc/system/library/db/mysqli.php on line 40

Warning: Cannot modify header information - headers already sent by (output started at /websites/123reg/LinuxPackage22/ta/xc/it/taxcite.co.uk/public_html/oc/system/library/db/mysqli.php:40) in /websites/123reg/LinuxPackage22/ta/xc/it/taxcite.co.uk/public_html/oc/system/library/response.php on line 12


Kind Regards

Mirza

If i'm not wrong, the upgrade script isn't perfect at the moment, but give a try in the extension store. I heard there's one out in the store to do the job

mirzakhalid82 wrote:Please help.
have received following error message while upgrading to 2.0.1.0


Notice: Error: Can't DROP 'option_value'; check that column/key exists
Error No: 1091
ALTER TABLE `oc_product_option` DROP `option_value` in /websites/123reg/LinuxPackage22/ta/xc/it/taxcite.co.uk/public_html/oc/system/library/db/mysqli.php on line 40

Warning: Cannot modify header information - headers already sent by (output started at /websites/123reg/LinuxPackage22/ta/xc/it/taxcite.co.uk/public_html/oc/system/library/db/mysqli.php:40) in /websites/123reg/LinuxPackage22/ta/xc/it/taxcite.co.uk/public_html/oc/system/library/response.php on line 12


Kind Regards

Mirza

You maybe can fix that errors (yet) Free Openacrt Converter Dashboard extension. See my sigature
That Opencart Upgrade in vain to remove to that 'option_value' column, where only the name has changed.
In this column, it may be useful information of product sales.