Module loader and upgrade wizard blank

[jason99]

We recently upgraded to 6.4.0-rc2, and now our module loader and upgrade wizard are returning blank screens. (Actually the upgrade wizard showed its first two screens once, but then went blank.)

Here's what we did. We started out on 6.1 and made the incremental upgrade (to 6.2 I think). At that point we used the module loader to try and install a theme that is not supposed to be compatible with 6.2 by changing its manifest (stupid, I know). This appeared to install, but the theme didn't show up in the list of available themes. We went on and installed 6.4.0-rc2, without checking to see whether the module loader was still working - but since the upgrade wizard was still obviously working, it would seem likely that the module loader was working as well. The upgrade was successful. Now, as mentioned, the module loader and the upgrade wizard show blank screens. sugarcrm.log shows no errors from the times when these screens are loaded.

At this point we're kinda stuck here. Any help would be greatly appreciated.

[sts]

You could have a look at the logs from your web server (apache?) and php. Blank screens usually occur if there are errors in a php file and the logs could help to locate them.

[jason99]

You could have a look at the logs from your web server (apache?) and php. Blank screens usually occur if there are errors in a php file and the logs could help to locate them.

Thanks - I shoulda thunk of that myself

PHP isn't logging any errors, but here's what Apache runs into when the page loads:

[Fri Jan 27 17:59:14 2012] [error] [client 192.168.2.249] File does not exist: /var/www/sugar/include/javascript/yui/build/layout/blank, referer: http://apps/sugar/index.php?module=ModuleBuilder&action=index&type=mb
[Fri Jan 27 17:59:14 2012] [error] [client 192.168.2.249] File does not exist: /var/www/sugar/include/javascript/yui/build/resize/blank, referer: http://apps/sugar/index.php?module=ModuleBuilder&action=index&type=mb
[Fri Jan 27 17:59:15 2012] [error] [client 192.168.2.249] File does not exist: /var/www/sugar/include/javascript/yui/build/calendar/blank, referer: http://apps/sugar/index.php?module=ModuleBuilder&action=index&type=mb
[Fri Jan 27 17:59:15 2012] [error] [client 192.168.2.249] File does not exist: /var/www/sugar/include/javascript/yui/build/treeview/blank, referer: http://apps/sugar/index.php?module=ModuleBuilder&action=index&type=mb
[Fri Jan 27 17:59:15 2012] [error] [client 192.168.2.249] File does not exist: /var/www/sugar/include/javascript/yui/build/tabview/blank, referer: http://apps/sugar/index.php?module=ModuleBuilder&action=index&type=mb
[Fri Jan 27 17:59:15 2012] [error] [client 192.168.2.249] File does not exist: /var/www/sugar/include/javascript/yui/build/datatable/blank, referer: http://apps/sugar/index.php?module=ModuleBuilder&action=index&type=mb
[Fri Jan 27 17:59:15 2012] [error] [client 192.168.2.249] File does not exist: /var/www/sugar/include/javascript/yui/build/paginator/blank, referer: http://apps/sugar/index.php?module=ModuleBuilder&action=index&type=mb
[Fri Jan 27 17:59:15 2012] [error] [client 192.168.2.249] File does not exist: /var/www/sugar/cache/themes/Sugar5/css/layout_sprite.png, referer: http://apps/sugar/index.php?module=ModuleBuilder&action=index&type=mb

[sts]

You could try the following:

Do a fresh installation of 6.4.0-rc2, but don't overwrite your existing installation. Then you could have a look into the new installation if there are some differences in the directories mentioned in the error messages. If there are some create a zip file from your complete original Sugar installation (just to have a fallback if needed). Then you could copy files from the new installation into your old system and test if this solves your problems (and to make sure that it does not create new problems). If you don't want to do this on your old installation directly you could create a clone first and do the changes on the clone.

[jason99]

Thanks for the suggestion. Correct me if I'm wrong, but it seems to me that I could just as well do the comparison between the contents of the full-install 6.4.0-rc2 zip file and the installed version, as between a fresh-loaded version and the current one. I have done this comparison - with the zip file - and the files mentioned are absent in both places.

These look to me like AJAX related files. If so, is it possible that AJAX could be disabled for the admin area and that might fix the problem?

[roblaus]

Could you ever solve this issue? It's random and seems to happen under certain (yet unknown) server conditions. Zend may be one of them. Missing files isn't the problem...

[jason99]

Could you ever solve this issue? It's random and seems to happen under certain (yet unknown) server conditions. Zend may be one of them. Missing files isn't the problem...

I haven't worked on it anymore since my last post, mainly because I have no idea what to try. I would be happy to provide any server information needed to help solve this. Would my complete phpinfo help?

In what connection do you suspect Zend of being connected? Installed/not installed, upgraded/not upgraded?

[roblaus]

It seems as if the module loader does everything correctly (uploads) but then has problems to copy something somewhere (you can rename /upload/upgrade - new place in 64) and everything is back to normal. You upload again, directories are created but there it stops without any error. On my server and most of my customers it seems ok, on some not.
I can rule out mySQL, no idea about php or some missing pieces maybe. Permissions I checked as well. Re. zend: This was mentioned somewhere that tokenizer.php may be needed but my server ticks away happily without it.
Only common thing so far: it happens twice on a Debian Squeeze, never on my standard Ubuntu 10.04LTS implementations (quite a few actually).
Send your phpinfo please but PM or email me, it's safer.

rgds
rl

[jason99]

I have emailed you my phpinfo, although this is a LAN server so I'm not too worried about safety in that regard. Just so happens, by the way, that I'm on Debian Squeeze. I suppose I could try generating an Ubuntu instance - or an earlier version of Debian, with the same Sugar files - and see what happens?

[roblaus]

I found it - it's Squeeze which currently comes with php 5.3.7 and this doesn't work. I downgraded to 5.2 by using the Lenny sources and all is fine now...