I have just installed 9.4.2 and it worked OK until I signed in as admin. Then I only see message: - LogicException
points to…
/public_html/concrete/vendor/symfony/http-foundation/Session/Storage/Proxy/AbstractProxy.php:113
I had that error when installing at a “value” hoster. I think their installer script had some issues. When I moved to another host the problem disappeared.
I have today had the dreaded “cannot change the name of an active session” at another testing site where I used Softaculous to install the latest 9.4.2 Concrete.
I tried twice. I delete both instances and tried with a fully manual install from your zip dated 1-july-2025. That had the same issues and I could not login, nor navigate the site more than 2 times.
I have edited a PHP file as below that was throwing the exception. That seems to have stopped the error but most likely has broken something else. I am not a php expert.
The file I edited was AbstractProxy.php and is located in
concrete/vendor/symfony/http-foundation/Session/Storage/Proxy/
In that file I edited out line 113…
which had shown throw new LogicException(‘Cannot change name…’);
I can now log into Concrete 9.4.2 and thus far it runs well.
Perhaps this will enable wiser heads than mine to fix the problem.
Cheers,
Please add this as an issue on Concrete GitHub
We’re getting the same ‘Exception- cannot change the name of an active session’ error.
Same error occurs with ver 9.4.1.
Installing on VPS, at Ionos.
We commented out Line 113 in AbstractProxy.php as tried by oiler42 in this post: Exception- "cannot change the name of an active session" · Issue #12631 · concretecms/concretecms · GitHub
While this allowed site to open, I’ve not been able to successfully install add-ons.
