Can't use this code "CameraDevice.Instance.SetFlashTorchMode(true);"

Could someone please help me with this problem, I can't use this line of code to open flashlight in the real device. "CameraDevice.Instance.SetFlashTorchMode(true);" It said The name `CameraDevice' does not exist in the current context. Also will this work on both platform iOS and android?
Much appreciate, and Thank You in advance!

 

It's hard to tell without more (or all) of the code. One possible issue is:

"CameraDevice" is declared inside a function, for loop, or if() and you are trying to access it outside of that function/for loop/if. e.g.

Code (CSharp):

1. //this does not work
2. void Start() {
3.     GameObject CameraDevice;
4. }
5.  
6. void Update() {
7.     CameraDevice.something();
8. }

 

I already used it in the function and out side the function, but both of them don't work. Maybe need to download some library like this link http://answers.unity3d.com/questions/270832/how-to-turn-on-camera-light-make-a-flashlight-on-i.html but I can't get that library from the website.

 

The "CameraDevice" you refer to looks like it's from the Vuforia SDK. Make sure you have that imported. Docs are here: https://library.vuforia.com/content...rence/unity/classVuforia_1_1CameraDevice.html