Fatal error: Class 'WHMCS_Log_Activity' not found

I'm trying to upgrade to 7.1.2 from 5.13.14

I've copied the full set of files over my installation and run the database upgrade successfully.

When I go to the admin page, I get this:

Fatal error: Class 'WHMCS_Log_Activity' not found in /var/www/html/WHMCS/modules/widgets/activity_log.php on line 13 Call Stack: 0.4120 11179272 1. call_user_func:{/var/www/html/WHMCS/vendor/whmcs/whmcs-foundation/lib/Module/Widget.php:0}() /var/www/html/WHMCS/vendor/whmcs/whmcs-foundation/lib/Module/Widget.php:0 0.4120 11179344 2. widget_activity_log() /var/www/html/WHMCS/vendor/whmcs/whmcs-foundation/lib/Module/Widget.php:0

I've tried overwriting the files again with no joy. I'm guessing it's something to do with vendor/autoload but I can't find any useful tips in these forums.

Can anyone shed any light on it?

When I go to the admin page, I get this:

 

Fatal error: Class 'WHMCS_Log_Activity' not found in /var/www/html/WHMCS/modules/widgets/activity_log.php on line 13 Call Stack: 0.4120 11179272 1. call_user_func:{/var/www/html/WHMCS/vendor/whmcs/whmcs-foundation/lib/Module/Widget.php:0}() /var/www/html/WHMCS/vendor/whmcs/whmcs-foundation/lib/Module/Widget.php:0 0.4120 11179344 2. widget_activity_log() /var/www/html/WHMCS/vendor/whmcs/whmcs-foundation/lib/Module/Widget.php:0

 

I've tried overwriting the files again with no joy. I'm guessing it's something to do with vendor/autoload but I can't find any useful tips in these forums.

 

Can anyone shed any light on it?

activity_log.php isn't a v7 shipped file any more so it must be a part of your old v5 installation... you could try deleting the file (or renaming it .txt) and seeing if it helps.

Thanks, that did it. Removing all the old files and doing a clean install.

Is there anything I might have lost by doing this (I've inherited this system - not fully up to speed on it yet)?

Is there anything I might have lost by doing this (I've inherited this system - not fully up to speed on it yet)?

as long as you kept a backup copy of your old files for reference, then you will at least know what you had.

you may need to reinstall any addons that you were using - though go back to the developers and get their latest versions for v7.

other things you may have lost? custom templates, language overrides, action hooks spring to mind - but the templates/hooks might not necessarily be v7 compatible anyway.