[Plugin: OptionTree] After upload plugin, could not activate

That file exists, you may want to download a clean copy of the latest version and activate it. If you can’t see the documentation, go to Users->Your Profile and check “Show Settings & Docs”.

No… it still does not work. I don’t know why now..

Derek,
Having the same issue and my hosting/domain provider will not help me. I am trying to install the Reaction theme from Themeforst and when I try to activate OptionTree I get the following fatal error:

Warning: require_once(/services/webpages/t/h/therogermag.com/public/WP/wordpress-content/plugins/services5/webpages/util/b/a/baggio.site.aplus.net/therogermag.com/public/WP/wordpress-content/plugins/option-tree/functions/functions.load.php) [function.require-once]: failed to open stream: No such file or directory in /services5/webpages/util/b/a/baggio.site.aplus.net/therogermag.com/public/WP/wordpress-content/plugins/option-tree/index.php on line 26

Warning: require_once(/services/webpages/t/h/therogermag.com/public/WP/wordpress-content/plugins/services5/webpages/util/b/a/baggio.site.aplus.net/therogermag.com/public/WP/wordpress-content/plugins/option-tree/functions/functions.load.php) [function.require-once]: failed to open stream: No such file or directory in /services5/webpages/util/b/a/baggio.site.aplus.net/therogermag.com/public/WP/wordpress-content/plugins/option-tree/index.php on line 26

Fatal error: require_once() [function.require]: Failed opening required ‘/services/webpages/t/h/therogermag.com/public/WP/wordpress-content/plugins/services5/webpages/util/b/a/baggio.site.aplus.net/therogermag.com/public/WP/wordpress-content/plugins/option-tree/functions/functions.load.php’ (include_path=’.’) in /services5/webpages/util/b/a/baggio.site.aplus.net/therogermag.com/public/WP/wordpress-content/plugins/option-tree/index.php on line 26

Hi Derek,
I’m having the same error above on a fresh copy of WordPress 3.3.1
I’ve tried re-installing a fresh copy after deleting the plugin from both the “Install Plugins” tool inside wordpress and manually downloading the ZIP from www.ads-software.com, neither worked. Any ideas why this would be?

Have discovered the issue, the plugin is using an old method to define the plugin directory and url global vars. In the plugin index on line 18 & 19 change the following:

Replace:

define( 'OT_PLUGIN_DIR', WP_PLUGIN_DIR . '/' . dirname( plugin_basename( __FILE__ ) ) );
define( 'OT_PLUGIN_URL', WP_PLUGIN_URL . '/' . dirname( plugin_basename( __FILE__ ) ) );

With:

define( 'OT_PLUGIN_URL', plugins_url( '', __FILE__ ) );
define( 'OT_PLUGIN_DIR', plugin_dir_path( __FILE__ ) );

And then the plugin behaves. I guess wordpress have finally deprecated the old methods.

OK, so good and bad news…

Good news
The plugin doesn’t cause a fatal error when activating now.

Bad news
It doesn’t work properly as none of the settings changed within an OptionTree based theme stick. Nothing gets saved.

Any help would be greatly appreciated, or I may have to discontinue using OptionTree all together, sigh.