It will be very difficult to test in WP_debug mode (WP 3.6.1 – PHP Version 5.4.10)
The plugin generated 25514 characters of unexpected output during activation. If you notice “headers already sent” messages, problems with syndication feeds or other issues, try deactivating or removing this plugin.
To much notice messages (here a – very – little excerpt) :
Strict Standards: Declaration of Hook::call_parent() should be compatible with Mixin::call_parent($method) in /Applications/MAMP/htdocs/wp_svn36/wp-content/plugins/nextgen-gallery/pope/lib/class.extensibleobject.php on line 1377
Strict Standards: Declaration of C_Component_Factory::define() should be compatible with C_Component::define($context = false) in /Applications/MAMP/htdocs/wp_svn36/wp-content/plugins/nextgen-gallery/pope/lib/class.component_factory.php on line 7
Strict Standards: Declaration of C_Base_Module::define() should be compatible with C_Component::define($context = false) in /Applications/MAMP/htdocs/wp_svn36/wp-content/plugins/nextgen-gallery/pope/lib/class.base_module.php on line 13
Strict Standards: Declaration of C_Base_Product::define() should be compatible with C_Component::define($context = false) in /Applications/MAMP/htdocs/wp_svn36/wp-content/plugins/nextgen-gallery/pope/lib/class.base_product.php on line 14
Strict Standards: Declaration of P_Photocrati_NextGen::define() should be compatible with C_Component::define($context = false) in /Applications/MAMP/htdocs/wp_svn36/wp-content/plugins/nextgen-gallery/products/photocrati_nextgen/product.photocrati_nextgen.php on line 12
Strict Standards: Declaration of M_Fs::define() should be compatible with C_Component::define($context = false) in /Applications/MAMP/htdocs/wp_svn36/wp-content/plugins/nextgen-gallery/products/photocrati_nextgen/modules/fs/module.fs.php on line 8
Strict Standards: Declaration of M_Validation::define() should be compatible with C_Component::define($context = false) in /Applications/MAMP/htdocs/wp_svn36/wp-content/plugins/nextgen-gallery/products/photocrati_nextgen/modules/validation/module.validation.php on line 10
Strict Standards: Declaration of M_Router::define() should be compatible with C_Component::define($context = false) in /Applications/MAMP/htdocs/wp_svn36/wp-content/plugins/nextgen-gallery/products/photocrati_nextgen/modules/router/module.router.php on line 9
Strict Standards: Declaration of M_WordPress_Routing::define() should be compatible with C_Component::define($context = false) in /Applications/MAMP/htdocs/wp_svn36/wp-content/plugins/nextgen-gallery/products/photocrati_nextgen/modules/wordpress_routing/module.wordpress_routing.php on line 10
Strict Standards: Declaration of M_Security::define() should be compatible with C_Component::define($context = false) in /Applications/MAMP/htdocs/wp_svn36/wp-content/plugins/nextgen-gallery/products/photocrati_nextgen/modules/security/module.security.php on line 10