I am receiving this error message after enabling a module. I am running Ubuntu on a Vbox. My php-apache.ini file has this line:
; Maximum input variable nesting level ; http://php.net/max-input-nesting-level max_input_nesting_level = 200
I thought this was the correct setting for nesting functions, however, since it is set to 200 and I am erroring at 100, it may not be. Is there another setting or file I am missing? Is there any other Drupal related file that holds that setting? How can I find it?
I found several questions on stackoverflow that suggested this might be caused either by Zend or xdebug. I believe I turned off xdebug by commenting out the xdebiug.ini file which, for Ubuntu linix is in the etc/php5/conf.d/directory. It appears to have eliminated the error, although the module I was enabling does not appear to have installed on the admin menus completely.