Never seen this error on the backend (after saving a content article) before I recently upgraded to 4.6.3
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Fatal error: Using $this when not in object context in /home/******/public_html/components/com_sef/joomsef.php on line 633
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Anyone seen it before/help?

Tks, John

Same here. Had run into an editing issue in /libraries/cms/application/site.php
Found: forum.joomla.org/viewtopic.php?f=709&t=825504

and changed $lang_code = $this->getLanguage()->getTag();
to $lang_code = JFactory::getLanguage()->getTag();
to get rid of a fatal error.
That worked (I think) until just upgraded the JoomSEF to 4.6.4.

Now getting that fatal error: Fatal error: Using $this when not in object context in /components/com_sef/joomsef.php on line 644

It seems to go away if you disable Auto Update URLs as mentioned in the forum thread. But that isn't necessarily good. Help?

I have found a better solution than changing the site.php file that is a core file, because every time you update joomla you have to edit the file again.
So i have edited the "components/com_sef/sef_ext/com_content.php", and i changed the line 287



to

I have also found a solution for the second error: Fatal error: Using $this when not in object context in /components/com_sef/joomsef.php

This happen because the build method is a static one, so you can't use $this, but if i have understood the code the function _checkURLs (non-static) needs metadata, so i have changed the line 633

to:


ps: my version of joomsef is 4.6.9