Have problems with installing AR foundation and ar core in unity?

Question

Have these Many problems with Unity and need help with them

Errors:

1-Library\PackageCache\[email protected]\Runtime\ARCoreImageTrackingProvider.cs(35,60): error CS1715: 'ARCoreImageTrackingProvider.Provider.imageLibrary': type must be 'RuntimeReferenceImageLibrary' to match overridden member 'XRImageTrackingSubsystem.IProvider.imageLibrary'
2-Library\PackageCache\[email protected]\Runtime\ARCoreImageTrackingProvider.cs(33,15): error CS0534: 'ARCoreImageTrackingProvider.Provider' does not implement inherited abstract member 'XRImageTrackingSubsystem.IProvider.imageLibrary.set'
3-Library\PackageCache\[email protected]\Runtime\ARCoreImageTrackingProvider.cs(33,15): error CS0534: 'ARCoreImageTrackingProvider.Provider' does not implement inherited abstract member 'XRImageTrackingSubsystem.IProvider.CreateRuntimeLibrary(XRReferenceImageLibrary)'
4-Error building Player because scripts have compile errors in the editor
5-Build completed with a result of 'Failed'
UnityEngine.GUIUtility:ProcessEvent(Int32, IntPtr)
6-UnityEditor.BuildPlayerWindow+BuildMethodException: Error building Player because scripts have compile errors in the editor
  at UnityEditor.BuildPlayerWindow+DefaultBuildMethods.BuildPlayer (UnityEditor.BuildPlayerOptions options) [0x00234] in C:\buildslave\unity\build\Editor\Mono\BuildPlayerWindowBuildMethods.cs:191 
  at UnityEditor.BuildPlayerWindow.CallBuildMethods (System.Boolean askForBuildLocation, UnityEditor.BuildOptions defaultBuildOptions) [0x0007f] in C:\buildslave\unity\build\Editor\Mono\BuildPlayerWindowBuildMethods.cs:97 
UnityEngine.GUIUtility:ProcessEvent(Int32, IntPtr)

Unity version: 2018.3.14f1

Answer 1

Hey man i figured it out. You must use the correct versioon of the package for each 2018 and 2019 unity. see the below:: follow my linkedin XR-Company page for more XR support :

For Unity 2018:

• AR Foundation 1.0.0 — preview.22 (the latest for 1.0.0)
• ARCore XR Plugin 1.0.0 — preview.24 (the latest for 1.0.0)
• ARKit XR Plugin 1.0.0-preview.27 (the latest for 1.0.0)

For Unity 2019:

• AR Foundation 2.0.2
• ARCore XR Plugin 2.0.2
• ARKit XR Plugin 2.0.2