Microsoft JScript runtime error: 'undefined' is null or not an object

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In my project i used some Javascripts for flash and some other application.
When i run my project the following error was occurred.
|Microsoft JScript runtime error: 'undefined' is null or not an object|

After that The flash did not work.

Posted 1-Nov-12 23:58pm

Maddy selva

Updated 2-Nov-12 0:12am

MT_

v2

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Nelek 2-Nov-12 6:01am

I would say it is a problem with the definition of an element in your code, but with the information you have given we can't do anything.

You should read:
what have you tried?[^]
How to ask a question?[^]

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E.F. Nijboer · Answer 1 · 2012-11-02T00:02:00

Solution 1

Your question is very vague and missing detail information. But you might just be missing an = when checking undefined. Otherwise, add more info and the actual code where the error occurs.

http://www.w3schools.com/jsref/jsref_undefined.asp[^]

Good luck!

Posted 2-Nov-12 0:02am

E.F. Nijboer

MT_ · Answer 2 · 2012-11-02T00:03:00

Generic answer would be "this error can occur if you are trying to use an object which is null."

In general, when you are using an object, its a better practice to check object for nullability to avoid such surprises.
Also a try-catch block surrounding any critical functionality would also stop ugly errors showing up on browser. For more details check www.w3schools.com/js/js_errors.asp[^]

Please provide code snippet where this error is occuring then we might be able to give you pin-point answer.

Hope that helps
Milind