Updating to Joomla 3.10 breaks the website

Hi,

I have an issue on all my websites using Flexicontent. As soon as I try to upgrade to Joomla 3.10, the site crashes. It doesn't happens on the other ones.

Here is the error message:

Fatal error: Cannot declare class JEventDispatcher, because the name is already in use in /XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX/public_html/administrator/components/com_flexicontent/defineconstants.php on line 107

Any solutions?

Same problem here ....

yep, same here.

[my setup]
Joomla! 3.9.28 Stable [ Amani ] 6-July-2021 15:00 GMT
FC 3.3.10
php 7.4.22
msql 8.0.26

ok sorry to heard this we will works on solution ASAP

Quick fix (may not be right, but it works without error):
Edit the file /administrator/components/com_flexicontent/defineconstants.php

LINE: 63, change the 3.9.99 to 3.10.99 like this:
if (!defined('FLEXI_J40GE')) define('FLEXI_J40GE', version_compare( $jversion->getShortVersion(), '3.9.99', 'g' ) );
TO
if (!defined('FLEXI_J40GE')) define('FLEXI_J40GE', version_compare( $jversion->getShortVersion(), '3.10.99', 'g' ) );

Happened to all my sites using this (awesome) component, but now all my sites and page load without error after I edited this.

Hello thanks for sharing WE will prepare an fixe and publish a New version

Hello yes the check if website is J4 is wrong
The above suggested fix should be correct
i am testing the fix

Replacing
3.9.99
with
3.99.99

You guys are great!  Thank you responding to the community!!!  This is just a quick solution I found.  I do not claim to be an expert on the code inside FlexiContent!
But this temp fix is at least necessary to access the back-end so the new fix can be applied...otherwise the site is fully broken and it would be impossible to upload a new package or use the module updater.

Yes for earlier update need to édit the file
WE will create a FAQ content to explain it

Hello

Unfortunately for all broken websites the only way to fix is a manual edit
Only if Flexicontent v3.3.11 is install prior to Joomla update ,  then next manual fix will not be needed

To fix website


1. Edit File  administrator/components/com_flexicontent/definecontants.php

At line 63, replace 3.9.99  with 3.99.99 

if (!defined('FLEXI_J40GE')) define('FLEXI_J40GE', version_compare( $jversion->getShortVersion(), '3.99.99', 'g' ) );

2.  Go to Extension/Manage Database and click Fix
3. Then upgrade to FC v3.3.11