Error of mssing ARRayCastManager

Hi everyone,
I am following this tutorial for trying to create an AR app.

I am stucking at 3:42 with the error like that
Assets\ARCursor.cs(9,12): error CS0246: The type or namespace name 'ARRayCastManager' could not be found (are you missing a using directive or an assembly reference?)
This is how my code look like

I have already install some packages for AR



So are there any recommendations to fix this?
Thank you

 

As the error suggests, it looks like you're missing a using directive. If you look at the top of the code in the video, on line 4, you can see they're using the namespace UnityEngine.XR.ARFoundation, which you didn't include in your code.

 

Even I add "using UnityEngine.XR.ARFounndation;", I still can nnot load the script

 

Probably because you have spelled the namespace wrong. It is not

UnityEngine.XR.ARFounndation

it is

UnityEngine.XR.ARFoundation

You have to make sure you spell everything correctly.

 

Thank you for your suggestion but it still doesn't work.
I just want to ask to import a package, Is just install it in pakage manager enough or should I do some thing more

 

Your Visual Studio doesn't appear to be correctly set up for Unity, which is partially the source of your issues. Solving that should make it easier to use the correct classes and name spaces.

I'll just link to one of @Kurt-Dekker 's posts with information on this: https://forum.unity.com/threads/scripting-program-will-not-open.1278443/#post-8110565

 

I think it is also because you have not spelled the type correctly either. You have

ARRayCastManager

, yet it is supposed to be

ARRaycastManager

I just installed the AR Foundation package and created your script and intellisense shows me that what you have is wrong.

 

Nice, it works now. But why isn't it auto-filling the typo for us? Is it because i dont IntelliSense for Unity?