Title: Error activating plugin Last modified: August 21, 2016 --- # Error activating plugin * Resolved [Robrs](https://wordpress.org/support/users/robrs/) * (@robrs) * [12 years, 2 months ago](https://wordpress.org/support/topic/error-activating-plugin-7/) * I am also receiving an error when I try to activate the plugin: * WordPress version: 3.8.1 PHP Version: 5.5 LeadIn Version: 0.6.1 * The error message is below. Any help you can offer? * Fatal error: Uncaught exception ‘Exception’ with message ‘Tried to create an alias but the call was not successful’ in D:\home\site\wwwroot\wp-content\plugins\ leadin\lib\mixpanel\Producers\MixpanelEvents.php:150 Stack trace: #0 D:\home\ site\wwwroot\wp-content\plugins\leadin\lib\mixpanel\Mixpanel.php(300): Producers_MixpanelEvents- >createAlias(‘d778fb890622431…’, ‘ALIASREMOVED’) #1 D:\home\site\wwwroot\wp-content\ plugins\leadin\inc\leadin-functions.php(120): Mixpanel->createAlias(‘d778fb890622431…’,‘ ALIASREMOVED’) #2 D:\home\site\wwwroot\wp-content\plugins\leadin\inc\leadin-functions. php(170): leadin_register_user() #3 D:\home\site\wwwroot\wp-content\plugins\leadin\ leadin.php(123): leadin_track_plugin_registration_hook(true) #4 [internal function]: WPLeadIn->add_leadin_defaults(”) #5 D:\home\site\wwwroot\wp-includes\plugin.php( 429): call_user_func_array(Array, Array) #6 D:\home\site\wwwroot\wp-admin\plugins. php(150): do_action(‘activate_leadin…’) #7 {main} thrown in D:\home\site\wwwroot\ wp-content\plugins\leadin\lib\mixpanel\Producers\MixpanelEvents.php on line 150 * [https://wordpress.org/plugins/leadin/](https://wordpress.org/plugins/leadin/) Viewing 8 replies - 1 through 8 (of 8 total) * [Andy Cook](https://wordpress.org/support/users/andygcook/) * (@andygcook) * [12 years, 2 months ago](https://wordpress.org/support/topic/error-activating-plugin-7/#post-4716588) * Hi Robrs – * Thanks for letting us know about this issue! This sounds like a lame answer, but can you please try deactivating the reactivating the plugin to check if the error persists? * Thanks, – Andy * Thread Starter [Robrs](https://wordpress.org/support/users/robrs/) * (@robrs) * [12 years, 2 months ago](https://wordpress.org/support/topic/error-activating-plugin-7/#post-4716620) * It won’t let me deactivate it because it won’t activate… that error gets thrown when trying to activate. I tried removing the plugin and reinstalling and then activating and got the same error. Frustrating… can’t find any other plugin that has this functionality… * [Andy Cook](https://wordpress.org/support/users/andygcook/) * (@andygcook) * [12 years, 2 months ago](https://wordpress.org/support/topic/error-activating-plugin-7/#post-4716715) * I’m sorry we caused you frustration and I want to fix the problem for you as soon as possible. * I refactored some of our code based on your support ticket and thanks again for letting us know about the issue. * Can you please email me at [andy@leadin.com](https://wordpress.org/support/topic/error-activating-plugin-7/andy@leadin.com?output_format=md) so I can send you over a new custom .zip file to install that should work for your website? * – Andy * [Andy Cook](https://wordpress.org/support/users/andygcook/) * (@andygcook) * [12 years, 2 months ago](https://wordpress.org/support/topic/error-activating-plugin-7/#post-4716912) * I’m glad the custom version of the plugin I sent over worked for you. * We rolled in a fix into the next version of the plugin which should take care of the problem for others in the future. * Thanks again for finding this bug and letting us know. * – Andy * Thread Starter [Robrs](https://wordpress.org/support/users/robrs/) * (@robrs) * [12 years, 2 months ago](https://wordpress.org/support/topic/error-activating-plugin-7/#post-4716913) * Andy, thanks for the outstanding support on this! You definitely went over the top to address my issue… to anyone reading this… their support is top notch! * [ynnor](https://wordpress.org/support/users/ynnor/) * (@ynnor) * [12 years, 1 month ago](https://wordpress.org/support/topic/error-activating-plugin-7/#post-4716918) * Hi Dont know if this is the right place to post since the thread is marked resoloved. But I get exactly the same error. * Perhaps you can fix it the same way? Thanks /Martin * [Andy Cook](https://wordpress.org/support/users/andygcook/) * (@andygcook) * [12 years, 1 month ago](https://wordpress.org/support/topic/error-activating-plugin-7/#post-4716919) * Hi Martin – * Thank you for posting your issue. We are actually launching a fix for this issue later today. I’m sorry for the problem and we should have a working version out for you to test very soon. * If you’d like the fix before the update, you can email me at [andy@leadin.com](https://wordpress.org/support/topic/error-activating-plugin-7/andy@leadin.com?output_format=md) and I’ll send you over the new version. * Thanks, – Andy * [Andy Cook](https://wordpress.org/support/users/andygcook/) * (@andygcook) * [12 years, 1 month ago](https://wordpress.org/support/topic/error-activating-plugin-7/#post-4716921) * Hi Martin – * I just wanted to let you know that we launched LeadIn Version 0.6.2 which includes a fix for this bug. If you download the current version from wordpress.org/plugins/ leadin you should be all set. Please email me if you have any problems – [andy@leadin.com](https://wordpress.org/support/topic/error-activating-plugin-7/andy@leadin.com?output_format=md). * Thanks, – Andy Viewing 8 replies - 1 through 8 (of 8 total) The topic ‘Error activating plugin’ is closed to new replies. * ![](https://ps.w.org/leadin/assets/icon-256x256.png?rev=3041936) * [HubSpot All-In-One Marketing - Forms, Popups, Live Chat](https://wordpress.org/plugins/leadin/) * [Frequently Asked Questions](https://wordpress.org/plugins/leadin/#faq) * [Support Threads](https://wordpress.org/support/plugin/leadin/) * [Active Topics](https://wordpress.org/support/plugin/leadin/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/leadin/unresolved/) * [Reviews](https://wordpress.org/support/plugin/leadin/reviews/) * 8 replies * 3 participants * Last reply from: [Andy Cook](https://wordpress.org/support/users/andygcook/) * Last activity: [12 years, 1 month ago](https://wordpress.org/support/topic/error-activating-plugin-7/#post-4716921) * Status: resolved