I was fixing things on a not well-maintained typo3 installation and it resulted in blank pages of frontend, backend and install tool.
I wanted to fix extensions because the powermail-extension was not working anymore even after updating to latest compatible version (tried emptying cache and database compare).
I deactivated an extension "compatibility6" to see if it was interfering and since then all pages have been blank including Install Manager. I reactivated the extension via PackageStates.php, emptied the cache but it did not change anything. I was not able to see any error messages even though I set the parameter in LocalConfiguration.php which made it hard to try to find out what is wrong. Then I restored a backup using vmware. Still, backend and frontend are blank.
I am using Apache and Typo3 7.6.23.
I do not know what might be causing the problem and would like to know what else to look for?
It means you have a PHP error there. The first thing would be to examine logs. If you see anything like "class not found", then your next action would be composer dumpautoload --no-dev.
Long time ago I had an article about blank pages in TYPO3 FE. Not up to date but still can be helpful: https://www.dmitry-dulepov.com/2009/03/blank-empty-page-in-typo3.html
Dmitry already wrote it: you have an error.
In production environment nothing is shown for not revealing any information about your system.
So the only information about the error can be found in the error log of your webserver.
What can you do to get more information about your error?
Enter the install tool and switch to develop mode. This will also enable deprecation logging into a file. Try to avoid filling your system with deprecation warnings by disabling deprecation logging.
Disable the default exceptionhandler by adding this to your typoscript setup:
config.contentObjectExceptionHandler = 0
Now you should see a call stack instead of blank screens.
Be aware that this might reveal confidential information from your system.
because of this you should use a copy of the live-system.
Related
I am starting the process of updating TYPO3 to higher versions (from the base 6.2.X version). The process of updating to version 7.6.X was ok. Being logged in 6.2 version, I switched to version 7.6 and updated elements in InstalTool, plugins etc. The problem appears when I log out. After entering my login address, I have a blank page - white page without any code. I can log into InstallTool but unfortunately not to BE.
The [FE] page works fine after the update. Any ideas what went wrong or where is the problem?
first: blank page normally means: there is an error but all error information was disabled.
If you just changed the source it might be a mismatch between cache and source: clear all caches in Install Tool.
Also your first step should be look into the server log.
If that does not give enough hints enable all debugging and error information in the Install Tool.
If that still gives no clue: disable all extensions (remove from PackageStates.php and don't forget to clear caches afterwards, maybe manually too)
As the title says. I was working on my typo3 site and tried installing the mmc_slideshow extension from the typ03 website. After clicking install an error appeared and now i can no longer access the live site. When I try to look at the /typo3 backend it is just the same error. It looks like the site is wiped. Is there anything I can do to get it back? I was able to see the files by looking into /typo3conf but it doesn't give me any editing options. The only thing i can think of is getting in through the hosting server.
Aside from the editing of typo3conf/PackageStates.php, which Mathias mentioned, you may need cleaning the cache (I don't remember the folder for sure, something like typo3temp/Cache/Code/? In doubt you may delete everything from /typo3temp/.)
Another option could be the Install-Tool where you might be able to disable failing extensions.
I got to work on a Typo3 page and I have to say I'm at the very beginning if it comes to TYPO3.
So I wanted to fix a bug and updated the plugin "fluidpages" from version 4.1.0 (I guess) to 4.3. That cause the "Oops, an error occurred!" in the backend and frontend, so I dont have access from that side. I still have the FTP login for the website. The version of TYPO3 is 8.7.18.
The errorcode I get is that one:
Could not analyse class:
"FluidTYPO3\Flux\Configuration\ConfigurationManager" maybe not loaded
or no autoloader?
Class FluidTYPO3\Flux\Configuration\ConfigurationManager does not exist
So does anyone know what I need to do?
From my research I think I need to update another plugins to make it back to work? And can I update them just by uploading them through FTP?
Thanks in advance!
Edit: After I tried to get the old version of the plugin running, I'm getting this error code from the log file:
Mon, 17 Feb 2020 22:59:56 +0100 [ALERT] request="fec23f8baf6dc" component="TYPO3.CMS.Frontend.ContentObject.Exception.ProductionExceptionHandler": Oops, an error occurred! Code: 2020021722595594039a4d - {"exception":"TYPO3\CMS\Extbase\Mvc\Exception: The default controller for extension \"Flux\" and plugin \"Page\" can not be determined. Please check for TYPO3\CMS\Extbase\Utility\ExtensionUtility::configurePlugin() in your ext_localconf.php.
You can enter the Install Tool via https://example.org/typo3/install.php and start with Check for broken extensions. If that doesn't yield the extension in question, you can always manually change the PackageStates.php file and remove the extension you want to unload. Afterwards you should flush all caches through the Install Tool.
In the long term you should consider a few things:
Use a local development environment which mirrors your production environment. You can safely perform all steps without any risk here before deploying.
Use a deployment strategy/tool which allows for rollbacks. This allows you to quickly revert to a working version of your instance in case all other checks have failed. A simple but flexible solution is Deployer, you'll need SSH for this though.
Have you tried dumping autoload from Install Tool? Generally, it would help for the class not loaded problem. Otherwise, you may want to check the log at typo3/temp/var/log/ and find the errors in code.
I'm currently running TYPO3 version 8.7.18 and running a site_package that was made by using the site package builder: link
Whenever I try to add a form by using the default backend forms module I get the default message Oops, an error occurred! along with that the following error
TYPO3\CMS\Form\Domain\Configuration\FormDefinition\Converters\AddHmacDataConverter not found
Searching for the issue I get several hits on the Gitlab but these do not provide any solution.
Along with this setup, I've added the forms module as a static include in my top-level template.
do you have a composer installation or an extension manager build up?
If a class is not found you may need to rebuild the autoloader information.
My error turned out to be caused by a corrupt installation. I've had to upload the file AddHmacDataConverter.php in the following path /public_html/typo3/sysext/form/Classes/Domain/Configuration/FormDefinition/Converters. A very weird error indeed.
For those that came here with the same error, make sure to check that folder. Apart from that add the news as a static inclusion in your top domain. You could also follow #Bernd Wilke's idea which s to disable the extension, clear all system caches (and additionally remove typo3/temp/autoload and then active the extension again.
I've got a Problem i can't upload any Media files in my Typo3 Backend.
If i choose a file in the Element browser I get a Internal Server Error 500, If i use upload i get this Error: Link Error
I also can't see the Thumbnails
I made the Files tyo3conf, fileadmin, typo3 and typo3temp with 777 access.
Imagemagick is also running and shows me all Test images.
Can anybody help me, I dont't know what do do.
The TYPO3 Version I use is: 6.1.0
I get a Internal Server Error 500
Have a look in your TYPO3 log accessible by the "log" backend module. If you can't find something there, get access to your vhost error log from the webserver. Usually, some sort of view capabilities are provided by some hoster control panels. Since it is a server error, you usually have to check the server log.
I also can't see the Thumbnails
Check your install tool again and play with the different options there. Also check that, in install tool > basic configuration, you have set the default paths (maybe let the install tool search again). You may see the test images, but if they're not generated correctly or display warnings, it may not work correctly.
Generally said: It is not really programming related, so IMHO not a fit for stackoverflow.com. Ask for help on irc.freenode.net in the #typo3 channel, this may be more helpful.