I was trying to add the BoWoB Chat module to my site. It doesn't work and the error log file in its directory contain multiple lines like the following ones:
Failed opening required 'sites/all/modules/og/og.field.inc' (include_path='.:/usr/lib/php:/usr/local/lib/php') in /home/public_html/mysite.com/sites/all/modules/og/og.module on line 16
Lines 15 and 16 are the following ones.
// Load all Field module hooks for Organic groups. require(drupal_get_path('module', 'og') . '/og.field.inc');
The file og.field.inc is in the same directory as sites/all/modules/og/og.module and its permissions are 644, so it is readable.
This one has me stumped. Do you have any suggestion?