Title: Marker Export Error
Last modified: August 30, 2016

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# Marker Export Error

 *  Resolved [Nigel_S](https://wordpress.org/support/users/nigel_s/)
 * (@nigel_s)
 * [10 years, 5 months ago](https://wordpress.org/support/topic/marker-export-error/)
 * I am using the Free Plugin on a multi-site installation and want to replicate
   the same marker(s) across a number of the sites, so have created a single marker
   to test this. However, when I try to Export the marker, it fails with a list 
   of errors:
 * Notice: Undefined index: filter-markername in <<Removed>>/wp/wp-content/plugins/
   leaflet-maps-marker/inc/import-export/start.php on line 814
 * Notice: Undefined index: filter-markername in <<Removed>>/wp/wp-content/plugins/
   leaflet-maps-marker/inc/import-export/start.php on line 819
 * Notice: Undefined index: filter-popuptext in <<Removed>>/wp/wp-content/plugins/
   leaflet-maps-marker/inc/import-export/start.php on line 824
 * Notice: Undefined index: filter-exclude-markername in <<Removed>>/wp/wp-content/
   plugins/leaflet-maps-marker/inc/import-export/start.php on line 832
 * Notice: Undefined index: filter-exclude-markername in <<Removed>>/wp/wp-content/
   plugins/leaflet-maps-marker/inc/import-export/start.php on line 837
 * Notice: Undefined index: filter-exclude-popuptext in <<Removed>>/wp/wp-content/
   plugins/leaflet-maps-marker/inc/import-export/start.php on line 842
 * This is followed by a number of similar lines:
 * Warning: Cannot modify header information – headers already sent by (output started
   at <<Removed>>/wp/wp-content/plugins/leaflet-maps-marker/inc/import-export/start.
   php:814) in /home/calibrev/public_html/bellevue/wp/wp-content/plugins/leaflet-
   maps-marker/inc/import-export/start.php on line 991
 * This is output for the following lines: 992, 993, 994, 995, 996, 1013, 1014 and
   1015.
 * You advice/help/guidance would be much appreciated.
 * Thank you in advance.
 * Nigel S.
 * [https://wordpress.org/plugins/leaflet-maps-marker/](https://wordpress.org/plugins/leaflet-maps-marker/)

Viewing 3 replies - 1 through 3 (of 3 total)

 *  Plugin Author [Robert Seyfriedsberger](https://wordpress.org/support/users/harmr/)
 * (@harmr)
 * [10 years, 5 months ago](https://wordpress.org/support/topic/marker-export-error/#post-6839293)
 * Hi Nigel,
    I am sorry but I cannot reproduce the issue – anyway undefined index
   warning should have any effect on the export. please make sure you are using 
   the latest version. You can also try disabling all other plugins temporarily 
   to verify if this is caused by a plugin conflict. best, Robert
 *  Thread Starter [Nigel_S](https://wordpress.org/support/users/nigel_s/)
 * (@nigel_s)
 * [10 years, 5 months ago](https://wordpress.org/support/topic/marker-export-error/#post-6839317)
 * Hi Robert,
 * Many thanks for coming back to me so quickly, very much appreciated.
 * Yes, the latest version – installed this morning.
 * Unfortunately I am not able to disable other plugins as it is on a live site,
   so I have done each one individually now (there were only six sub-sites to do).
 * If I have any problems in the future, I will let you know.
 * Thanks again and best wishes,
 * Nigel.
 * PS. BTW: Very nice plugin!! 🙂
 *  Plugin Author [Robert Seyfriedsberger](https://wordpress.org/support/users/harmr/)
 * (@harmr)
 * [10 years, 5 months ago](https://wordpress.org/support/topic/marker-export-error/#post-6839322)
 * ok! let me know if you have any news regarding your issue (another idea would
   be to try the pro version 😉
    best, Robert

Viewing 3 replies - 1 through 3 (of 3 total)

The topic ‘Marker Export Error’ is closed to new replies.

 * ![](https://ps.w.org/leaflet-maps-marker/assets/icon.svg?rev=970936)
 * [Leaflet Maps Marker (Google Maps, OpenStreetMap, Bing Maps)](https://wordpress.org/plugins/leaflet-maps-marker/)
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 * 3 replies
 * 2 participants
 * Last reply from: [Robert Seyfriedsberger](https://wordpress.org/support/users/harmr/)
 * Last activity: [10 years, 5 months ago](https://wordpress.org/support/topic/marker-export-error/#post-6839322)
 * Status: resolved