Error 1151: A conflict exists with definition event in namespace internal.

Error 1151: A conflict exists with definition event in namespace internal.

Here is the code that is creating an error:

var event:ListEvent = new ListEvent("change");
listGrid.dispatchEvent(event);

Nothing looks wrong right? Take a look at the function it is in.

private function xmlReturned(event:ResultEvent) : void {
	//...
	var event:Event = new Event("change");
	listGrid.dispatchEvent(event);
}

Now do you see the problem? I am redeclaring the “event” variable. It already exists in this scope. It is legal to redeclare a local variable in the same scope in AS3 but only if the variable is of the same type. If I declared the “event” variable as type “ResultEvent” then this code would work. Changing the variable name to a different name such as “changeEvent” cleared up the problem.

This also appeared when I had two variables named the same but again, they were different types.

// declared in a script tag
	[Bindable]
	[Embed(source='images/preloader1.png')]
	public var image1:Class;

// later declared in an image

Read more about this error at Compiler Errors

Please post in the comments if this has helped you or not