vivedesigns Posted October 9, 2014 Share Posted October 9, 2014 Hi I have Prestashop 1.5.4.1 and purchased this module: http://addons.prestashop.com/en/checkout-modules/6841-one-page-checkout-for-prestashop.html I have error when i try to install: The following module(s) were not installed properly: - onepagecheckout :Unable to install override: The method isDifferent in the class Address is already overriden.Please help i sent message to developer but these guys can ignore you and not respond for months Please help i have also followed instructions and removed files in override folder Link to comment Share on other sites More sharing options...
tuk66 Posted October 13, 2014 Share Posted October 13, 2014 A nice description of this problem is at http://addons-modules.com/store/en/content/75-classmethod-conflict-and-code-merge Link to comment Share on other sites More sharing options...
Mochi09 Posted August 27, 2015 Share Posted August 27, 2015 (edited) A nice description of this problem is at http://addons-modules.com/store/en/content/75-classmethod-conflict-and-code-merge question about this, how to merge? like copy the code from xxx.php to xxx.php or just replace the file? *I already figure it out! This really save me! Thank you so much for the guide! Edited August 27, 2015 by Mochi09 (see edit history) Link to comment Share on other sites More sharing options...
leonidnk Posted October 19, 2015 Share Posted October 19, 2015 question about this, how to merge? like copy the code from xxx.php to xxx.php or just replace the file? *I already figure it out! This really save me! Thank you so much for the guide! Hi, Please, tell, how you did it. Thanks in advance. Link to comment Share on other sites More sharing options...
Mochi09 Posted October 19, 2015 Share Posted October 19, 2015 Hi, Please, tell, how you did it. Thanks in advance. i just deleted those .php files instead of renaming it. (backup the files first) Link to comment Share on other sites More sharing options...
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