Update Failed: Controller not found: N2systembackendInstallController

Not so sure… the slider does work but Chrome Dev Tools reports

(index):417 Uncaught ReferenceError: N2R is not defined at (index):417

Cleared the Console, forced a hard cache refresh and the error keeps appearing

This was the full error message after the update to 3.3:

Controller not found: N2systembackendInstallController
Fatal error: Uncaught Error: Call to undefined method N2Form::import() in /www/sites/fd7/491/dev.henleyherald.com/web/wp-content/plugins/smart-slider-3/library/smartslider/backend/N2SmartsliderApplicationTypeBackend.php:16 Stack trace: #0 /www/sites/fd7/491/dev.henleyherald.com/web/wp-content/plugins/smart-slider-3/nextend/library/libraries/mvc/application/type.php(50): N2SmartsliderApplicationTypeBackend->autoload() #1 /www/sites/fd7/491/dev.henleyherald.com/web/wp-content/plugins/smart-slider-3/nextend/library/libraries/mvc/application/application.php(61): N2ApplicationType->__construct(Object(N2SmartSliderApplication), '/www/sites/fd7/...') #2 /www/sites/fd7/491/dev.henleyherald.com/web/wp-content/plugins/smart-slider-3/nextend/library/libraries/mvc/application/application.php(85): N2Application->_createApplicationType('backend') #3 /www/sites/fd7/491/dev.henleyherald.com/web/wp-content/plugins/smart-slider-3/includes/smartslider3.php(259): N2Application->getApplicationType('backend') #4 /www/sites/fd7/491/dev.henleyhe in /www/sites/fd7/491/dev.henleyherald.com/web/wp-content/plugins/smart-slider-3/library/smartslider/backend/N2SmartsliderApplicationTypeBackend.php on line 16

Hi @zimbo000!

I think in your case some files might be missing. Please follow this alternative update method:
https://smartslider3.helpscoutdocs.com/article/418-wordpress-alternative-update#ftp
so go to your Plugins list, delete your current Smart Slider 3 installation, then upload our zip files through FTP instead. If you would use Filezilla, you could make sure that all the files are getting uploaded.

If this won’t solve your problem, please write to us to [email protected] and we will try to help there!

Just found that the thumbnails under the main image are displaying in a vertical column and not horizontally under the image as before. I post this in case anyone else sees an issue.

I’ll try your update method and report back.

Just pushed out version 3.3.2 which should solve the “Controller not found: N2systembackendInstallController” error. For the other problems, please get in touch with us with a link to your site: [email protected]

Similar problem and it cause conflict with tinyMCE Advanced too …

upd…

alternative update method does not solve problem with TinyMCE

• This reply was modified 6 years, 5 months ago by djolbars.

Just done the update to 3.3.1 as per the instructions via FTP. N2R error has not gone away.

Updated to 3.3.2, N2R error still there plus thumbnails still vertical. Will send email with site details.

Version 3.3.3 should fix TinyMCE advanced plugin issue, thanks for reporting @djolbars

@zimbo000: none of these updates will solve your issue, we can continue the discussion about your issue in email. We have just sent you the reply.