Title: Undefined index errors
Last modified: August 20, 2016

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# Undefined index errors

 *  [Diana Nichols](https://wordpress.org/support/users/diananichols/)
 * (@diananichols)
 * [13 years, 4 months ago](https://wordpress.org/support/topic/undefined-index-errors-3/)
 * Installation went fine, and updating settings worked, but every time I add a 
   slide, or try to do anything else (create slider, add shortcode), I get a series
   of errors like this:
 * Notice: Undefined index: size_thumb in …/wp-content/plugins/len-slider/lib/lenslider.
   class.php on line 1400
 * Notice: Undefined index: path_thumb in …/wp-content/plugins/len-slider/lib/lenslider.
   class.php on line 1400
 * Notice: Undefined index: thumb_id in …/wp-content/plugins/len-slider/lib/lenslider.
   class.php on line 1400
 * On some actions I also get the “headers already sent” message… ideas?
 * [http://wordpress.org/extend/plugins/len-slider/](http://wordpress.org/extend/plugins/len-slider/)

Viewing 2 replies - 1 through 2 (of 2 total)

 *  Plugin Author [Igor Sazonov](https://wordpress.org/support/users/tigusigalpa/)
 * (@tigusigalpa)
 * [13 years, 4 months ago](https://wordpress.org/support/topic/undefined-index-errors-3/#post-3421842)
 * Hi, diananichols!
    Do you use thumbnails? Can you describe your events step-by-
   step, screenshots?
 *  Thread Starter [Diana Nichols](https://wordpress.org/support/users/diananichols/)
 * (@diananichols)
 * [13 years, 4 months ago](https://wordpress.org/support/topic/undefined-index-errors-3/#post-3421847)
 * I’m not sure what you mean by using thumbnails… this is a new site just being
   setup.
 * I have two screen shots, but apparently can’t upload here… These are the error
   messages:
 * **immediately upon activation of the plugin:**
    Notice: Undefined index: ls_has_thumb
   in …/wp-content/plugins/len-slider/lib/lenslider.class.php on line 278
 * Notice: Undefined index: ls_slider_disen in …/wp-content/plugins/len-slider/lib/
   lenslider.class.php on line 1575
 * Notice: Undefined variable: banner_array in …/wp-content/plugins/len-slider/lib/
   lenslider.class.php on line 1405
 * Notice: Undefined index: ls_has_thumb in …/wp-content/plugins/len-slider/lib/
   lenslider.class.php on line 278
 * Notice: Undefined index: ls_thumb_max_width in …/wp-content/plugins/len-slider/
   lib/lenslider.class.php on line 1333
 * Notice: Undefined index: ls_slider_disen in …/wp-content/plugins/len-slider/lib/
   lenslider.class.php on line 1625
 * **Then, when trying to add a slide:**
 * Notice: Undefined index: ls_thumb_image in …/wp-content/plugins/len-slider/ls-
   index.php on line 37
 * Notice: Uninitialized string offset: 0 in …/wp-content/plugins/len-slider/lib/
   lenslider.class.php on line 607
 * Notice: Undefined variable: tmp_file in …/wp-content/plugins/len-slider/lib/lenslider.
   class.php on line 858
 * Notice: Undefined variable: image_thumb_path in …/wp-content/plugins/len-slider/
   lib/lenslider.class.php on line 1075
 * Notice: Undefined variable: image_thumb_size in …/wp-content/plugins/len-slider/
   lib/lenslider.class.php on line 1076
 * Notice: Undefined variable: thumb_id in …/wp-content/plugins/len-slider/lib/lenslider.
   class.php on line 1077
 * Notice: Undefined index: ls_thumb_max_width in …/wp-content/plugins/len-slider/
   lib/lenslider.settings.class.php on line 33
 * Warning: Cannot modify header information – headers already sent by (output started
   at …/wp-content/plugins/len-slider/ls-index.php:37) in …/wp-includes/pluggable.
   php on line 876
 * Thanks for your quick reply!

Viewing 2 replies - 1 through 2 (of 2 total)

The topic ‘Undefined index errors’ is closed to new replies.

 * ![](https://s.w.org/plugins/geopattern-icon/len-slider_f9d6d7.svg)
 * [Len Slider](https://wordpress.org/plugins/len-slider/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/len-slider/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/len-slider/)
 * [Active Topics](https://wordpress.org/support/plugin/len-slider/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/len-slider/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/len-slider/reviews/)

## Tags

 * [errors](https://wordpress.org/support/topic-tag/errors/)

 * 2 replies
 * 2 participants
 * Last reply from: [Diana Nichols](https://wordpress.org/support/users/diananichols/)
 * Last activity: [13 years, 4 months ago](https://wordpress.org/support/topic/undefined-index-errors-3/#post-3421847)
 * Status: not resolved