ActionScript Error #1151: A conflict exists with definition progBar in namespace internal.

ActionScript 3 Error #1151
Description:
AS3 error 1151 is an easy one. This means that within your ActionScript class(namespace internal) there is already a variable or function by that name.

Fix:
To solve Flex/Flash Error 11151 just hit CTRL-F(Apple-F) and search for that term that has a conflict and change it to something appropriate. You may have been building a particle system or working with an X or Y variable and forgot to change one of them so that they both read exactly the same. The example below shows what I mean and how to solve the issue.

Bad Code 1:

public class Particle extends Sprite
{
public var xVelocity:Number;
public var xVelocity:Number;

Good Code 1:

public class Particle extends Sprite
{
public var xVelocity:Number;
public var yVelocity:Number;

This should help you resolve Flash / Flex Error #1151

Thanks and as always Happy Flashing

Curtis J. Morley

Related Error(s) : ActionScript Error #1024 , ActionScript Error #1056