[ActionScript 3] code in main TL

[Knight52]

I have some experience on ActionScript 2 and just moved to ActionScript 3. When I tried to insert any code into main timeline, this error will show up

Scene 1 1152: A conflict exists with inherited definition flash.display:DisplayObject.mask in namespace public.

Any code, even trace(), will make this error occur. What happened? I can't put code in main timeline?

[Attila0413]

At 7/4/12 10:19 AM, Knight52 wrote: I have some experience on ActionScript 2 and just moved to ActionScript 3. When I tried to insert any code into main timeline, this error will show up

Scene 1 1152: A conflict exists with inherited definition flash.display:DisplayObject.mask in namespace public.

Any code, even trace(), will make this error occur. What happened? I can't put code in main timeline?

Yes you can, but you cannot mix AS2 and AS3 and you need to set the language you're using in your project.

[Knight52]

At 7/4/12 10:42 AM, Attila0413 wrote:
Yes you can, but you cannot mix AS2 and AS3 and you need to set the language you're using in your project.

How do I set the language? I'm using Flash CS5.5

[Attila0413]

At 7/4/12 10:52 AM, Knight52 wrote:

At 7/4/12 10:42 AM, Attila0413 wrote:
Yes you can, but you cannot mix AS2 and AS3 and you need to set the language you're using in your project.

How do I set the language? I'm using Flash CS5.5

Publish Settings -> Flash -> Script

Or while you create your project

[Knight52]

It's already ActionScript 3.0, so that's not the problem.
Now I've just found out EVEN comments will occur the error -_- is it possible that ActionScript 2 somewhere else in the project cause the problem?

[MintPaw]

What's the line of code that the error is on?

If you're using AS3 it's probably a bad idea to use Flash CS, look up FlashDevelop and use it with FlexSDK if you're serious about it.

[Knight52]

At 7/4/12 12:40 PM, MintPaw wrote: What's the line of code that the error is on?

If you're using AS3 it's probably a bad idea to use Flash CS, look up FlashDevelop and use it with FlexSDK if you're serious about it.

Anything I put in the main timeline causes the error, even empty comment block (/**/).
And I have to use Flash as the project will be on tablet pc.

[milchreis]

At 7/4/12 10:19 AM, Knight52 wrote: Scene 1 1152: A conflict exists with inherited definition flash.display:DisplayObject.mask in namespace public.

Somewhere within your fla or in a class you named something "mask" and that's the issue. Get rid of that (rename it)
Have a look at your instance names!

Any code, even trace(), will make this error occur.

What happens if you put no code on the timeline?

[Knight52]

At 7/5/12 03:50 AM, milchreis wrote:
What happens if you put no code on the timeline?

It can compile, and it shows run-time error from the code I'm not working on yet( something about sound). That's why I think it's not about instance name.

[Knight52]

Turned out there WAS something named 'mask'. I changed its name, and it works now. Still wonder why could it compile when I didn't put any code in main timeline though.

[MintPaw]

At 7/6/12 12:31 PM, Knight52 wrote: Turned out there WAS something named 'mask'. I changed its name, and it works now. Still wonder why could it compile when I didn't put any code in main timeline though.

It's because mask is a property already, it's like calling a MovieClip "width" or "this" it's going to create a namespace conflict because object cannot be referenced.