Title: DevTools failed to load SourceMap
Last modified: February 23, 2021

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# DevTools failed to load SourceMap

 *  Resolved [adminbergtourentipptirol](https://wordpress.org/support/users/adminbergtourentipptirol/)
 * (@adminbergtourentipptirol)
 * [5 years, 3 months ago](https://wordpress.org/support/topic/devtools-failed-to-load-sourcemap-10/)
 * Hi,
    Since wordpress update to 5.6.2 the export doesn´t work anymore => never
   ending loading indicator when pressing new export and “choose what to export”
   = post.
 * In Chrome the console logs this warnings:
    (1) DevTools failed to load SourceMap:
   Could not load content for [https://bergtourentipp-tirol.at/wp-content/plugins/wp-import-export-lite/assets/js/bootstrap.min.js.map](https://bergtourentipp-tirol.at/wp-content/plugins/wp-import-export-lite/assets/js/bootstrap.min.js.map):
   HTTP error: status code 404, net::ERR_HTTP_RESPONSE_CODE_FAILURE (2) DevTools
   failed to load SourceMap: Could not load content for [https://bergtourentipp-tirol.at/wp-content/plugins/wp-import-export-lite/assets/css/bootstrap.min.css.map](https://bergtourentipp-tirol.at/wp-content/plugins/wp-import-export-lite/assets/css/bootstrap.min.css.map):
   HTTP error: status code 404, net::ERR_HTTP_RESPONSE_CODE_FAILURE
 * …and this error:
    (1)
 *     ```
       sortable.min.js:9 Uncaught TypeError: this._addClass is not a function
           at $.<computed>.<computed>._create (sortable.min.js:9)
           at $.<computed>.<computed>._create (jquery-ui.js:415)
           at $.<computed>.<computed>._createWidget (jquery-ui.js:585)
           at new $.<computed>.<computed> (jquery-ui.js:376)
           at HTMLDivElement.<anonymous> (jquery-ui.js:531)
           at Function.each (jquery.min.js:2)
           at s.fn.init.each (jquery.min.js:2)
           at s.fn.init.$.fn.<computed> [as sortable] (jquery-ui.js:523)
           at wpieRefreshExportFields (wpie-export-admin.min.js:1)
           at Object.success (wpie-export-admin.min.js:1)
       ```
   
 * Could you please support?
 * Best regards,
    Dominik
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Fdevtools-failed-to-load-sourcemap-10%2F%3Foutput_format%3Dmd&locale=en_US)
   to see the link]_

Viewing 1 replies (of 1 total)

 *  Plugin Author [vjinfotech](https://wordpress.org/support/users/vjinfotech/)
 * (@vjinfotech)
 * [5 years, 3 months ago](https://wordpress.org/support/topic/devtools-failed-to-load-sourcemap-10/#post-14090122)
 * Hi,
 * Thanks for getting in touch.
 * Please mail me on [support@vjinfotech.com](https://wordpress.org/support/topic/devtools-failed-to-load-sourcemap-10/support@vjinfotech.com?output_format=md)
   with your issue with details. i will provide solution in minimum time.
 * let me know if you have any questions.
 * Thanks and have a nice day

Viewing 1 replies (of 1 total)

The topic ‘DevTools failed to load SourceMap’ is closed to new replies.

 * ![](https://ps.w.org/wp-import-export-lite/assets/icon-256x256.png?rev=2129449)
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## Tags

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

 * 1 reply
 * 2 participants
 * Last reply from: [vjinfotech](https://wordpress.org/support/users/vjinfotech/)
 * Last activity: [5 years, 3 months ago](https://wordpress.org/support/topic/devtools-failed-to-load-sourcemap-10/#post-14090122)
 * Status: resolved