PHP Errors, Notices, and Warnings in MAMP Pro

I’ve just installed the FieldFrame extension but when I go to create a new field under Admin > Weblog Administration > Field Groups > Custom Fields, the following errors are displayed at the top of the page:

Notice: Use of undefined constant FT_URL - assumed ‘FT_URL’ in /Users/name/Sites/site.com/system/extensions/ext.fieldframe.php on line 2573 Notice: Use of undefined constant FT_URL - assumed ‘FT_URL’ in /Users/name/Sites/site.com/system/extensions/ext.fieldframe.php on line 2578 Notice: Use of undefined constant FT_URL - assumed ‘FT_URL’ in /Users/name/Sites/site.com/system/extensions/ext.fieldframe.php on line 2578 Warning: Invalid argument supplied for foreach() in /Users/name/Sites/site.com/system/extensions/fieldtypes/ff_matrix/ft.ff_matrix.php on line 305

I presume this is probably more of a PHP error display setting in the php.ini file but I’m not sure which setting is best to change to prevent these errors without turning off important errors I need to see.

I’m using MAMP Pro on the Mac. Can someone recommend the settings to change to prevent these notices/warnings?

Thanks