Property ListUtility::$objectManager does not exist
Using 6.2.0beta5, I get the following error message when trying to use the extension manager:
Property TYPO3\CMS\Extensionmanager\Utility\ListUtility::$objectManager does not exist
This seems to belong to beta5, since I don't have the problem on a beta4 setup.
#3 Updated by Oliver Hader about 6 years ago
- File clearCache.png added
Since the last beta version, the "flush all caches" button in the backend does not consider the internal system caches (it was different in earlier TYPO3 CMS versions).
However, due to performance reasons the caches have been separated to runtime caches and internal system caches - system caches are not cleared automatically.
Enter the Install Tool, open "Important Actions" section and click the "Clear all Caches" button there
#6 Updated by Oliver Hader about 6 years ago
- Status changed from Accepted to Needs Feedback
- Assignee set to Oliver Hader
- Priority changed from Must have to Should have
- % Done changed from 0 to 50
- PHP Version set to 5.3
- Complexity set to easy
Please let me know whether the round-trip in the Install Tool solved your problem. Thanks in advance!
#7 Updated by Christian Clemens about 6 years ago
Thank you for your quick response! I've tried clear caches as described, but install tool detected many incompatible extension. I don't think, they are really incompatible, because I had no problems with them, also not under 6.2beta5. And: sometimes 1 extension was mentioned, sometimes 3 extension.
Now I have downgraded to 6.2beta4, but extension manager does still not work. Message appears is now:
Property TYPO3\CMS\Extensionmanager\Utility\ListUtility::$packageManager does not exist
ReflectionException thrown in file
/is/htdocs/wp11035062_LVJ7Z06IPY/www/typo3_src-6.2.0beta4/typo3/sysext/extbase/Classes/Reflection/PropertyReflection.php in line 47.
If I remember correctly, I've got the same message before downgrading and after clearing caches as described.
Do you have any idea how to get the extension manager to work again?
#9 Updated by Christian Clemens almost 6 years ago
I have the same problem again after upgrading from 6.2beta4 to 6.2.2. "Clear all Caches" in install tool does not solve the problem for me - the error message still apears.
But: I'm using "APC cache backend" instead of "Database cache backend". If I switch back to "Database cache backend", then the error suddenly dissappears.
The solution for this problem is: writing a small php file which clears the APC-Cache:
<?php apc_clear_cache (); apc_clear_cache('user'); apc_clear_cache('opcode'); ?>
I think, this should be inserted in the TYPO3 code for "Clear all Caches" in install tool, too.