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If there's more than one object in the problematic line of code, for example: Here's the same error trying to reference a null object method: Precisely the same error will occur in many different guises. To create the object with code, use the "new" constructor: To remedy this problem, you must create the referenced object either on-stage or with actionscript. Trying to access the x property (or any other property of mc) is going to result in a 1009 error because you cannot access a property of a null (or non-existant) object. The variable mc has been declared but is null because no movieclip exists and and it has not been created.
ADOBE FLASH ACTIONSCRIPT 3.0 CODES CODE
Is the simplest code that would trigger a 1009 error. For example, if there is no object mc on-stage, If there is only one object reference in the problematic line of code, you can conclude that object does not exist when that line of code executes. Fortunately, most of these errors are quick and easy to fix (assuming you read the Permit Debugging section). This is the most common error posted on the Adobe Flash-related Forums. Some of it may be helpful.īelow are the error messages (in numeric order) most commonly cited in the ActionScript 3 forum and help for resolving.ġ009: Cannot access a property or method of a null object reference. Searching for "Flash as3 error xxxx" should bring up all sorts of information. The additional information may be enough to save hours of hair-pulling frustration.īut if that's not enough help, don't be afraid to use a search engine. This is the first place you should check when you encounter an error message that you do not completely understand. As of this writing that link is endixes.html but that may change especially as updated help files are published by Adobe. But if you need further explanation, check the Flash help file Appendixes (Help > Flash Help > ActionScript 3.0 and Components > ActionScript 3.0 Reference for the Adobe Flash Platform > Appendixes), where you'll find Compiler Errors and Run-Time Errors which comprise a complete listing of all error messages often with additional and sometimes helpful information. You may find some error messages need no explanation (like compiler error "1021 : Duplicate function definition"). But, in all scenarios (except for errors that occur during an asynchronous event like file loading), the error message will indicate the exact line number of the problematic code, if you tick "Permit debugging". Error messages' exact contents depend on the error type (compile-time or run-time), the exact error and the location (timeline or class file) of your problematic code. First, click File > Publish Settings > Flash, tick the "Permit debugging" checkbox, then click OK and retest.īy ticking "Permit debugging" you will see more detailed/helpful error messages.