Install problem: "An unexpected error has occurred. Please try again later."

[David Trefry]

Hello! I just purchased Xenforo yesterday and have an install issue. I'm fairly new to this web stuff and PHP programming but have spent many years writing C and C++ code and I think that will help me catch onto PHP.

Here's what I'm running:

PHP 5.4.11
MySQL version 5.1.69
and the latest zend server web server I believe it's 6.0.1 ( apache, etc... )
All running on Centos Linux.
I can load other web pages ( just my test pages not in the Xen folders ) but the Xenforo stuff is just displaying that error.

I followed the install instructions, did all the chmod's, etc.

I set the debug switch in config.h to get more data about the problem.

It says the install complete successfully but when I click on setup options, I get this call stack:

1. XenForo_Controller->responseException() in XenForo/ControllerAdmin/Abstract.php at line 165
2. XenForo_ControllerAdmin_Abstract->assertAdmin() in XenForo/ControllerAdmin/Abstract.php at line 17
3. XenForo_ControllerAdmin_Abstract->_preDispatchType() in XenForo/Controller.php at line 302
4. XenForo_Controller->preDispatch() in XenForo/FrontController.php at line 312
5. XenForo_FrontController->dispatch() in XenForo/FrontController.php at line 132
6. XenForo_FrontController->run() in /var/www/html/upload/admin.php at line 13

Any help will be appreciated, thanks!

David Trefry.

 

[Mike]

What's the actual error? You skipped it - it's normally above the backtrace (that you included).

 

[David Trefry]

Is this what you mean?

"An unexpected error has occurred. Please try again later."

 

[Paul B]

No, the full contents of the error from the ACP log.

 

[David Trefry]

Can you tell me where I can find that log? thanks.

 

[Mike]

Well, you pasted the back trace list -- there was just the actual error above it. So where ever you saw that error would work.

Conversely, you can see the error log in the admin control panel under Tools > Server Error Log.

 

[David Trefry]

I can't get that far. Can't get past that error, no Xen screens are loading.

 

[David Trefry]

Although I can load other unrelated php pages I mad to test out the server.

I'm running everything as root.

 

[Chris D]

I can't get that far. Can't get past that error, no Xen screens are loading.

That's the point Mike and Brogan were trying to make.

You posted this:

1. XenForo_Controller->responseException() in XenForo/ControllerAdmin/Abstract.php at line 165
2. XenForo_ControllerAdmin_Abstract->assertAdmin() in XenForo/ControllerAdmin/Abstract.php at line 17
3. XenForo_ControllerAdmin_Abstract->_preDispatchType() in XenForo/Controller.php at line 302
4. XenForo_Controller->preDispatch() in XenForo/FrontController.php at line 312
5. XenForo_FrontController->dispatch() in XenForo/FrontController.php at line 132
6. XenForo_FrontController->run() in /var/www/html/upload/admin.php at line 13

There's usually another line of text above that. So if you can get it to produce that error again, try and grab the line of text above it, or provide us with a screenshot of your entire screen.

 

[David Trefry]

Here you go:

An exception occurred: Controller response exception: XenForo_ControllerResponse_Redirect in /var/www/html/ear/library/XenForo/Controller.php on line 757
XenForo_Controller->responseException() in XenForo/Controller.php at line 581
XenForo_Controller->canonicalizeRequestUrl() in XenForo/ControllerPublic/Index.php at line 9
XenForo_ControllerPublic_Index->actionIndex() in XenForo/FrontController.php at line 313
XenForo_FrontController->dispatch() in XenForo/FrontController.php at line 132
XenForo_FrontController->run() in /var/www/html/ear/index.php at line 13

 

[Mike]

Very bizarre error - something is preventing the exception from being caught (as it should be) as far as I can see.

Is it possible for you to submit a ticket via the customer area with FTP details so I can debug this?

 

[David Trefry]

I'm running this on a vmware vm, if that matters...

I can ftp the whole install directory to you if you give me a site...I'll open a ticket.

Thanks for the help.

 

[David Trefry]

CentOS 6.4 for 64 bit.

 

[Mike]

After a lot of random debugging, this appears to have been caused by one of Zend Optimizer+'s optimizations (zend_optimizerplus.optimization_level) -- disabling the optimization_level (setting it to 0) resolved the issue.

 

[Kevin]

After a lot of random debugging, this appears to have been caused by one of Zend Optimizer+'s optimizations (zend_optimizerplus.optimization_level) -- disabling the optimization_level (setting it to 0) resolved the issue.

Mike, I'm trying to move a test site running XF 1.2 to a new host (from dedicated to VPS) and I'm getting the same error. I've tried adding "zend_optimizer.optimization_level = 0" to php.ini but no luck.

Any thoughts or would it be best to submit a ticket? If a ticket, just let me know what info' you'd like.

 

[Luke F]

Mike, I'm trying to move a test site running XF 1.2 to a new host (from dedicated to VPS) and I'm getting the same error. I've tried adding "zend_optimizer.optimization_level = 0" to php.ini but no luck.

Any thoughts or would it be best to submit a ticket? If a ticket, just let me know what info' you'd like.

Disable xdebug or dbg if you have them installed

(or any other low level extensions)

 

[Kevin]

Disable xdebug or dbg if you have them installed

(or any other low level extensions)

Thanks for the idea! A little experimenting and it looks like eAccelerator may be the culprit ("extension="eaccelerator.so") which came pre-installed by the host as part of the VPS image.

Explains what was breaking, now to figure out why.

 

[Kevin]

Explains what was breaking, now to figure out why.

... and the "why?" may be a case of the right hand not knowing what the left hand is doing. Looks like a case of an older version of eaccelerator not liking PHP 5.4.17 -- time to install APC anyway.

Thanks @Luke Foreman for pointing me in the right direction.