Hello - having the same issue after (attempted) upgrade to 4.7.2 from 4.6.12.1. During an upgrade, after files were unzipped, I have got the following message:
[[Template core/admin/global/globalTemplate is throwing an error. This theme may be out of date. Run the support tool in the AdminCP to restore the default theme.]]
and since that time I get the same message when trying to access AdminCP page.
Recovery mode is not working either. Seems like an entry in constants.php:
define('RECOVERY_MODE',True);
is simply being ignored. Whatever I do now I get the same message as mentioned above.
Ergo - I'm stuck.
Luckily I got this on my test page, but until it is solved I will not even get close to touch my production site.
Kindly please help.