Undefined index: country_id in tax.php

Problem fixed, there was a permission problem on my error.txt log file. Deleted it, and it all worked fine.

Hi Everyone!

I read all replies and check none of the method worked to get raid of this error. Actually this is not an error at all. Infact this is a browser error.

You can solve it by clearing your COOKIES for your opencart site.

Please check this link to clear cookies of specific site of all browsers: http://www.vertster.com/blog/2009/07/4- ... or-domain/

Happy Selling

I have the same problem, then delete the country field in register form.