7.5RC to 7.5 upgrade error

Hi,

I cannot upgrade from 7.5RC to 7.5. I have set permissions, cleared cache and disabled developer mode.

Nothing shows in crm log, but in php error log there are lots of undefined index errors in sugarbean.php and the following fatal error:–

[Tue Jan 19 00:06:25.434162 2016] [:error] [pid 1685] [client 192.168.1.200:53912] PHP Fatal error: Smarty error: the $compile_dir ‘cache/smarty/templates_c’ does not exist, or is not a directory. in /var/www/crm/include/Smarty/Smarty.class.php on line 1094, referer: http://crm/index.php

I upgraded to 7.5RC without any issues.

Any ideas?

Cheers

the last few lines of the upgrade log show:-

Tue, 19 Jan 2016 00:47:41 +0000 [UpgradeWizard] - Starting file copy process…
Tue, 19 Jan 2016 00:47:42 +0000 [UpgradeWizard] - File copy done.
Tue, 19 Jan 2016 00:47:42 +0000 [UpgradeWizard] - Starting post_install()…
Tue, 19 Jan 2016 00:47:42 +0000 [UpgradeWizard] - Entered post_install function.

https://suitecrm.com/forum/installation-upgrade-help/7858-upgrade-from-7-4-x-to-7-5-problems