devot:eeDevoted to ExpressionEngine

Can anybody think of any reason why I might get a blank page when - after installing this plug-in in the correct folder in third_party - I get a blank page when I click on Add-ons - Plugins (all other sections - accessories, modules, extensions and field-types - are OK).
As soon as I drag the plug-in out of the third_party folder, everything works again. Also, installing and removing other plug-ins (imgsizer, power_truncate) works fine.
I am using ExpressionEngine: Version 2.1.3 Build 20101220, and have just re-downloaded and re-installed ActiveRecord.
Any ideas anybody ?

Thanks

Michael

Are you getting any PHP errors in your log? You can also turn debugging on by setting $config[‘debug’] to 1 inside /system/index.php and see if there are any PHP errors. Do you have the query module installed?

Dear Rob,

thanks for your amazingly prompt response.
I have set php error reporting to: 1: PHP/SQL error messages shown only to Super Admins.
As soon as I drag the active record folders into the third_party folder, and refresh the plug-in page of the Add-on Manager, I only get a blank screen, no errors reported.
Using the plug-in list plug-in, I can list all installed plug-ins (which does include Active Record, if it’s currently located in the hird_party folder).
It tries to access this url:
http://localhost:8888/system/index.php?S=b7d0138422392eccb220b2088b3b6140bb1c6941&D=cp&C=addons_plugins,
but nothing happens ...
This happens even when no other plug-ins are installed.
I have optimised and repaired the database tables and flushed the caches, re-started the computer, re-started MAMP Pro etc ...

Thanks so much for your help with this.

Michael

Can you check /Applications/MAMP/logs/php_error.log and see if there’s anything in there? Also, if you directly turn on debugging in the system/index.php file, you may see some errors that the normal debugging pref (as you have it )won’t show.