[ARFoundation]unity ARfoundation+ARcore_available frame source not found from candidates:

1.
2.不支持vulkan渲染–>减掉
3.

4.建议用unity2020不用2019，因为从unity提供和官网提供的版本不同，这个有要求

5.现在只有unityPro才能在电脑上测试
6.华为手机现在不能装Google play services……
7.检测设备是否支持ARcore

using UnityEngine.XR.ARFoundation;

public class CheckDevice : MonoBehaviour
{
    [SerializeField] ARSession m_Session;

    void Awake()
    {
        m_Session = GetComponent<ARSession>();
    }
    private IEnumerator Start()
    {
        Debug.Log("Start");
        if ((ARSession.state == ARSessionState.None)||(ARSession.state==ARSessionState.CheckingAvailability))
        {
            Debug.Log("Chack Availability");
            yield return ARSession.CheckAvailability();
        }
        if (ARSession.state == ARSessionState.Unsupported)
        {
            Debug.LogWarning("Device Not Supported");
        }
        else {
            Debug.Log("Device OK");
            m_Session.enabled = true;
        }
    }
}
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