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jQuery Is Unavailable or Undefined


Product Progress® Kendo UI® for jQuery
Kendo Version 2017.2.621


When working with Kendo UI, an error that jQuery is unavailable or undefined occurs.


The possible causes for this issue are:

  • jQuery is not included in the project files.
  • jQuery is included after the Kendo UI JavaScript files.
  • jQuery is included after the Kendo UI widget initialization statements.

As a result, the Kendo UI widgets do not function as expected.

Error Message

  • (In Google Chrome and Firefox) ReferenceError: jQuery is not defined
  • (In Internet Explorer) jQuery is undefined


Make sure that jQuery is included only before the Kendo UI JavaScript files and before any JavaScript statements that depend on it.

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