Resolved using UnityEngine.XR.ARFoundation - not exists?

Hi guys, Im sorry to bring this silly problem but im trying to run the sample scene from AR foundation, and after 3 hours with uninstalling/installing ARfoundation package (and ARcore and ARKit) and 2 unity versions check, it seems like nothing is working...
it looks like the foundation package can't deploy its library, I keep getting UnityEngine.XR.ARFoundation not exists.


I've tried it with Unity 18.2.18f1 and Unity 18.1.9f2
all AR packages are v1.0.0

Also, there is nothing on google...:/
anyone else had this problem? please help
Thanks, Ariel

 

Another person had a similar issue a while back. It was almost like the word "foundation" was done Unicode that just looked that way. Sounds of, but could you try deleting that love and retyping it?

 

Hi, sorry... im not fully understand what you suggest:/
But I can tell that the only library the visual studio recognize while im typing UnityEngine.XR... is WSA.

 

You did as I was suggesting; thanks. Are there any errors in the console window?

 

Hi No, there are no errors in unity consol. only in the VS saying it can find the libraries.
BTW I've tried loading it on another PC that runs Unity 2018.2.12f1, there are no problems over there...
any idea why on one PC it working and not on the other? ( I don't think it because of unity versions...)
again, many thanks for the help
Ariel

 

Hi, sorry to bother again but any idea why its happening...?
Im adding another pic from the VS, it gives an error even without using XR.. namespace.

 

Hi,

I've got a similar problem.
Using Unity 2018.3.0f2


Seems like ARFoundation is not part of Unity.XR

 

Did anyone find a solution for this ? Because when trying to add using " UnityEngine.XR.ARFoundation " it is not there ? What is wrong? I have imported all the packages needed but nothing..

 

People of this thread, have you installed ARFoundation package? Look in Package Manager UI and you should see something like this:

 

@jimmya I'm having the same issue, and yes I do have ARFoundation installed via the package manager. All of the built in example components work fine for me with no error (ARPlaneManager, etc).

In my case I'm wanting to write a custom ARPlaneManager, so I've created a new script and copied over the code from the built in ARPlaneManager and immediately references to ARSessionOrigin, ARPlaneAddedEventArgs, etc all throw compiler errors saying that they can't be found.

Does this issue perhaps have to do with the core ARFoundation classes being sealed? (I have little experience with sealed classes)

 

You're probably missing a "using" at the top?

 

Bro I've installed it with the package manager and the "using" is there....( this is happening with the given default scripts)
Any other ideas what else can we do?
Thanks

 

Yes ..... I've made sure I have the correct using statements. Also have tried having the class be inside the same namespace which should have all that covered anyways. Also am running Visual Studio which helps ensure all that is ok.

 

I had the same problem and I had to update visual studio to 15.9.6. And solved.

 

Upgraded to visual studio 15.9.11 and it still not working.
The packages AR Foundation, ARCore XR Plugin, and ARKit XR Plugin are added in the project and up to date.

Update: I wrote a dummy Debug.Log line, saved the script and let the unity re-compile, then ran the code with a break point. It now sees XR.ARFoundation.

 

@SolutionsGameDev can you elaborate a little more please? I'm experiencing the same issue. Where did you leave a break point? This allowed you to build and run?

UPDATE: Solved by using Unity 2018.3.14f1. I misinterpreted the getting started page when it said use Unity 2018.3+ to mean you could use the 2019 versions. Silly me!

 

Unity dev team, did you even test your scenes? I just checked AR Foundation samples, and got 2 issues:

1. double error on ANY scene start in Editor
   
   Code (CSharp):

   1. FormatException: Input string was not in a correct format.
   2. System.Number.ParseSingle (System.String value, System.Globalization.NumberStyles options, System.Globalization.NumberFormatInfo numfmt) (at <1f0c1ef1ad524c38bbc5536809c46b48>:0)
   3. System.Single.Parse (System.String s, System.Globalization.NumberStyles style, System.Globalization.NumberFormatInfo info) (at <1f0c1ef1ad524c38bbc5536809c46b48>:0)
   4. System.Single.Parse (System.String s, System.IFormatProvider provider) (at <1f0c1ef1ad524c38bbc5536809c46b48>:0)
   5. UnityEngine.XR.ARKit.ARKitImageTrackingSubsystem.RegisterDescriptor () (at Library/PackageCache/com.unity.xr.arkit@2.1.0-preview.3/Runtime/ImageTracking/ARKitImageTrackingProvider.cs:124)
2. continues errors each frame in ARWorldMap scene
   
   Code (csharp):

   1. InvalidCastException: Specified cast is not valid.
   2. ARWorldMapController.get_supported () (at Assets/Scripts/ARWorldMapController.cs:240)
   3. ARWorldMapController.Update () (at Assets/Scripts/ARWorldMapController.cs:278)

Mac, Unity 2019.1.1f1, ARFoundation 2.1.0 preview2, ARCore 2.1.0 preview4, ARKit 2.1.0 preview3

 

These versions of packages worked for me. If you require the latest packages of AR foundation then update Unity to 2019.1.

 

Yes, I require, and that's why I have updated project to 2019.1.1 as well, I mentioned it in my last comment

 

I had the same issue. The thing is which when you install a new Unity it downgrades mono version so you need to install mono 6 which is preview version after installing a new version of the unity.
Again It doesn't matter which version of the Unity your project is opened in it is just because of the Mono version. At least in my case it was.
I hope it helps.

 

Also forgot to mention already project is spoiled. Do this.

1. Close all unity projects
2. Download and install mono framework 6 (Remember it is a preview version)
3. Install mono
4. Create a new unity project
5. Migrate your files from existing project into new project (Files in asset folder)
6. Open new project which now you have your files in
7. make sure you resolve you uninstall and install AR foundation arcore and arkit from package manager
8. Close the project
9. Copy project settings files from previous project to new project settings (delete project setting fils in new project first)
10. Open the project
11. Everything should be fine

 

Hello!
I had to rebuild the ARSession and ARSessionOrigin from Unity after importing the new ARFoundation, ARkit and ARCore packages. Then I created a new class of my own and I was migrating the content ..

 

If anybody else ends here after updating to UnityEngine.XR.ARFoundation 3.1 and ARReferencePointManager is gone, it seems to have changed name to ARAnchorManger. Whatever implications it might have, its a better name IMO

 

I was having a very similar issue when updating to Unity 2019.3 and trying to use ARFoundation 3, using VSCode for editing. ARFoundation would not appear within the Unity package when trying to import it in the using statement. In the OmniSharp log of the project it kept saying that "the referenced ARKit.csproj does not exist" for all the different packages I was trying to use. Not sure exactly what the issue was but I fixed it by updating my version of Mono to the latest, and then downgrading the Visual Studio from 1.1.4 to 1.1.3 from package manager. Then I opened a new project as suggested above and rebuilt the project manually. Now seems to be working.

 

Thanks. I had this problem as well. Downgrading to VS Code Editor package version 1.1.3 fixed it.

 

Hello everybody,
I'm trying for the last few days everything to make the "UnityEngine.XR.ARFoundation" run in Visual Basic, but with no success. I´ve tried everything written above and all combinations with versions, even uninstalling everything, cleaning registers and instaliling again and no way to make it work.

Anyone has any magical idea?

Many thanks!!

 

I don't know if this is related but under "Edit/Preferences/" then external tools, make sure External Script Editor is iset to the desired editor (VS 2019) and make sure Generate all .csproj files is ticked

 

You've made my day man! Thanks a lot, it's running!!

For any case I leave here number of versions that I use now:
Unity 2019.3.1f1
Manager Package:
AR Foundation 3.0.1
AR Core XR plugin 3.0.1
Visual Studio code editor 1.1.4

VS 2019 16.4.6

 

@Faustik How did you installed AR Foundation 3 / Core 3 in Unity 2019.3 ?

I cant see higher version that 2.1.8 in Package manager in Unity 2019.3 ...

 

In the Package Manager, make sure you expand the foldout next to the package name and then click "See all versions"

 

If I removed JsonDotNet Standalone Assemblies, I would get all sorts of issues with ARFoundation.

I fixed it by reimporting JsonDotNet, closing the project, deleting Library folder, then opening the project again.

(Just in case you use Unity Transport - ) I had to downgrade and then reupgrade Unity Transport after the steps above because it was throwing extra errors.

Also, don't forget to switch platform!

 

I had the same problem:

The type or namespace name 'ARTrackedImageManager' could not be found (are you missing a using directive or an assembly reference?)

And it turned out I manually had to add Unity.XR.ARFoundation to my assembly definition. If you are using custom assembly definitions in your project, this could be the case.

 

it still happens also with unity 2020.3
i moved a project from one pc to another, and perhaps what causes it is a failure in reimporting the project.
solved by:
1. signing in with your unity user on the second pc.
2. option A: removing a package and reinstalling it.
2. option B: install a completely new package and then remove it.
it does not need to be a specific one. unity just needed a reimporting of packages after the project was alive.