Upgrading Drupal

On updating from 8.5.1 to 8.5.2 in WAMP received Fatal Error: class 'drupal\toolbar\pagecache\allowtoolbarpath' not found in c:\wamp64\www\newlife-counseling.com\core\lib\drupal\component\dependencyinjection\container.php

I have tried downloading fresh copy of 8.5.2 and replacing updated files, but Error remains.

The file, core\lib\drupal\component\dependencyinjection\container.php, is the same as the file in 8.5.1. 

I don't know what to do next, or where to look.  I would be very appreciative of any tips that you could give me.

Thank you.

Hello,

today I try tu upgrade my drupal website fromù 8.2 to 8.5

I delete folder core and vendor (and top level directory), update new file with FTP. Then I try to launch update.php, but I have an error :

Fatal error: Interface 'Drupal\Core\ParamConverter\ParamConverterInterface' not found in /datas/var/www/htdocs/core/lib/Drupal/Core/ProxyClass/ParamConverter/MenuLinkPluginConverter.php on line 15

somebody can help me for this problem ?

Thanks for your help

Hello,

We are having the problem same as below mentioned URL

https://isc.sans.edu/forums/diary/A+Review+of+Recent+Drupal+Attacks+CVE2...

http://www.swarm-logic.com/aggregator/sources/13

accession.php, payload.php,payload.php.1 etc, such files are getting created in our public_html folder.

Please help us in overcoming this attack.

Thank you..

Hello!

I have a D6 SIte, which I would like to upgrade to D7, but the problem it that I have an event modul that I need and it's not supported.

I'm not clear what to do. Tips ?

Thanks!

Drupal 8.5 sites. Looking at Media browser and other features of 8.6. The choice is to add Media entity browser and other things to 8.5 or convert to 8.6 early. Perhaps at the beta stage. Has anyone experience with the 8.6 branch?

What I want is an 8.6 ready to train people in how to handle media the 8.6 way. Adding things to 8.5 is an option but when I read the 8.6 plans, there are what looks like conflicting plans for things like CKEditor integration. Using the real 8.6 would be better.

I upgraded Drupal to 8.5.1 from 8.4.4 using drush without any error. But when I go to the site the visualization seems to have loose the theme. If I change the theme, nothing change. Is there a way to solve the problem?

This is the site: http://talos.cerm.unifi.it/Instruct-IT