Attachments broken after upgrading 2.1.0 to 2.21.0

[krahe]

I installed Mantis 2.1.0 some time ago using my hosting service's tools (Softaculous on cphosting.com). Today I used those same tools to upgrade it to the latest version, which is 2.21.0. The upgrade seemed to proceed without error, but since the update was applied I can no longer access existing attachments or add new ones. Whenever I attempt to do either I get the following error message:

Code: Select all

Fatal error: Class 'finfo' not found in /home/krahe/public_html/mantis/core/file_api.php on line 1004

Any suggestion as to how to proceed from here would be appreciated. I did take a full backup just before applying the update, and also pulled all the existing issues down to my local workstation in XML form. If I could I would go back to 2.1.0 and restore the backup, but I don't see any way to do that. Thank you for any advice/assistance.

[atrol]

Run admin/check/index.php
I assume you will get a message that PHP fileinfo extension is not installed

[krahe]

As I cannot at the moment access my site via a command shell (I would probably have to request access to such from my hosting service), let's say that you're correct - that said extension is not installed. What could I do to correct that? (btw, I checked in cpanel and it says the current version of PHP in use on my site is 5.6; there are other versions I could select, including newer 7.x versions; also, while I've been developing software for over a third of a century, I have minimal familiarity with PHP)

[atrol]

I would try to use PHP 7.x as this is recommended for Mantis and a lot faster than PHP 5.6.
Maybe this fixes also your issue.
If not and if you don't have root access to your server, you have to contact your provider.

[krahe]

When I select a PHP version other than the native/default (currently 5.6), it lets me choose the extensions that are enabled. I tried selecting 5.6 explicitly, which let me select the fileinfo extension. Then I used another cpanel function called MultiPHP Manager and selected 5.6 for my domain and subdomains, but that still didn't do the trick. So I went back and selected 7.3 instead, which also needed fileinfo selected, and also applied it to all my domains and subdomains, and that did the trick. And you're right - it is much faster than 5.6! Thank you!