Error #1069: Property ID not found on flash.text.TextField and there is no default

programming flash
1

Hi,

Why I am getting the following error: Please help.

Error #1069: Property ID not found on flash.text.TextField and there is no default value.

tl.addLabel("welcome_in", tl.duration);
tl.append(TweenMax.to(Welcome_mc, 0, {alpha:1, immediateRender:false, onStart:setSection, onStartParams:["welcome"]}));

tl.addLabel("home_in", tl.duration);
tl.append(TweenMax.to(Home_mc, 0, {alpha:1, immediateRender:false, onStart:setSection, onStartParams:["home"]}));


nav_mc.navWelcome_mc.ID = "welcome";
nav_mc.navHome_mc.ID = "home";