Java 在作为库导出到本机Android应用程序的ARCore Unity HelloAr应用程序上未显示摄像头提要

我已经在我的设备上运行了Unity Hello AR示例，使用以下链接中的指南 它工作得很好

但是当我使用下面链接中给出的技术将这个unity项目作为库导出到本机Android时

相机馈送不显示。而其余的按钮和snackbar会显示出来。我已检查相机权限，但即使手动授予权限，它也不起作用

下面是我的logcat错误消息

10-25 23:41:26.018 20420-20420/soft.aasharib.arcoreintegrate E/Zygote: isWhitelistProcess - Process is Whitelisted
10-25 23:41:26.019 20420-20420/soft.aasharib.arcoreintegrate E/libpersona: scanKnoxPersonas
    Couldn't open the File - /data/system/users/0/personalist.xml - No such file or directory
10-25 23:41:26.317 20420-20420/soft.aasharib.arcoreintegrate E/ViewRootImpl@470227[MainActivity]: Surface is not valid.
10-25 23:41:26.467 20420-20487/soft.aasharib.arcoreintegrate E/Unity: Google AR Error: java.lang.ClassNotFoundException: Didn't find class "com.unity3d.unitygar.GoogleAR" on path: DexPathList[[zip file "/data/app/soft.aasharib.arcoreintegrate-PUl65upN4UYH79MhLvu6Ww==/base.apk"],nativeLibraryDirectories=[/data/app/soft.aasharib.arcoreintegrate-PUl65upN4UYH79MhLvu6Ww==/lib/arm, /data/app/soft.aasharib.arcoreintegrate-PUl65upN4UYH79MhLvu6Ww==/base.apk!/lib/armeabi-v7a, /system/lib, /vendor/lib]]Didn't find class "com.unity3d.unitygar.GoogleAR" on path: DexPathList[[zip file "/data/app/soft.aasharib.arcoreintegrate-PUl65upN4UYH79MhLvu6Ww==/base.apk"],nativeLibraryDirectories=[/data/app/soft.aasharib.arcoreintegrate-PUl65upN4UYH79MhLvu6Ww==/lib/arm, /data/app/soft.aasharib.arcoreintegrate-PUl65upN4UYH79MhLvu6Ww==/base.apk!/lib/armeabi-v7a, /system/lib, /vendor/lib]]
10-25 23:41:26.593 20420-20487/soft.aasharib.arcoreintegrate E/Unity: Unable to find unitygar
10-25 23:41:29.182 20420-20487/soft.aasharib.arcoreintegrate E/Unity: Unable to find arcore_unity_api
10-25 23:41:29.194 20420-20487/soft.aasharib.arcoreintegrate E/Unity: Unable to find arpresto_api
10-25 23:41:29.245 20420-20487/soft.aasharib.arcoreintegrate E/Unity: DllNotFoundException: arcore_unity_api
        at (wrapper managed-to-native) GoogleARCoreInternal.ARPrestoCallbackManager/ExternApi:ArCoreUnity_setArPrestoInitialized (GoogleARCoreInternal.ARPrestoCallbackManager/EarlyUpdateCallback)
      at GoogleARCoreInternal.ARPrestoCallbackManager._Initialize () [0x00000] in <filename unknown>:0 
      at GoogleARCoreInternal.ARPrestoCallbackManager.get_Instance () [0x00000] in <filename unknown>:0 
      at GoogleARCoreInternal.ARCoreAndroidLifecycleManager.get_Instance () [0x00000] in <filename unknown>:0 
      at GoogleARCoreInternal.LifecycleManager.get_Instance () [0x00000] in <filename unknown>:0 
      at GoogleARCore.ARCoreSession.Awake () [0x00000] in <filename unknown>:0 

    (Filename:  Line: -1)
10-25 23:41:29.255 20420-20487/soft.aasharib.arcoreintegrate E/Unity: DllNotFoundException: arpresto_api
        at (wrapper managed-to-native) GoogleARCoreInternal.ARCoreAndroidLifecycleManager/ExternApi:ArPresto_setEnabled (bool)
      at GoogleARCoreInternal.ARCoreAndroidLifecycleManager.DisableSession () [0x00000] in <filename unknown>:0 
      at GoogleARCore.ARCoreSession.OnDisable () [0x00000] in <filename unknown>:0 

    (Filename:  Line: -1)

10-25 23:41:26.018 20420-20420/soft.aasharib.arcoreeintegrate E/zyote:isWhitelistProcess-流程被列入白名单
10-25 23:41:26.019 20420-20420/soft.aasharib.arcore整合E/libpersona:scanKnoxPersonas
无法打开文件-/data/system/users/0/personalist.xml-没有这样的文件或目录
10-25 23:41:26.317 20420-20420/soft.aasharib.arcoree/ViewRootImpl@470227[MainActivity]：曲面无效。
10-25 23:41:26.467 20420-20487/soft.aasharib.arcoreigrate E/Unity:Google AR错误：java.lang.ClassNotFoundException:在路径：DexPathList[[zip文件”/data/app/soft.aasharib.arcoreigrate-PUl65upN4UYH79MhLvu6Ww=/base.apk]]的nativelibrary目录中未找到类“com.unity3d.unitygar.googear”=[/data/app/soft.aasharib.arcoreeintegrate-PUl65upN4UYH79MhLvu6Ww=/lib/arm，/data/app/soft.aasharib.arcoreeintegrate-PUl65upN4UYH79MhLvu6Ww=/base.apk！/lib/armeabi-v7a，/system/lib，/vendor/lib]]在路径：dexuyPathlist[[zip file”/data/app/soft.aasharib.arcoreeintegrate-pul65upn4h79mh7wwwk=/apk]上未找到类，nativeLibraryDirectories=[/data/app/soft.aasharib.arcoreeintegrate-PUl65upN4UYH79MhLvu6Ww=/lib/arm，/data/app/soft.aasharib.arcoreeintegrate-pul65upn4uyh79mhlv6ww==/base.apk！/lib/armeabi-v7a，/system/lib，/vendor/lib]]
10-25 23:41:26.593 20420-20487/soft.aasharib.arcore集成E/Unity:找不到unitygar
10-25 23:41:29.182 20420-20487/soft.aasharib.arcore集成E/Unity:找不到arcore\u Unity\u api
10-25 23:41:29.194 20420-20487/soft.aasharib.arcoreeintegrate E/Unity:找不到arpresto_api
10-25 23:41:29.245 20420-20487/soft.aasharib.arcore集成E/Unity:DllNotFoundException:arcore\u Unity\u api
在（包装器管理为本机）GoogleARCoreInternal.arpretLocallBackManager/ExternApi:ArCoreUnity\u SetArpResToInInitialized（GoogleARCoreInternal.arpretLocallBackManager/EarlyUpdateCallback）
在GoogleARCoreInternal.arpretocalbackmanager.\u初始化（）[0x00000]中：0
位于：0中的GoogleARCoreInternal.ArpRestocalBackManager.get_实例（）[0x00000]
位于：0中的GoogleARCoreInternal.ARCoreAndroidLifecycleManager.get_实例（）[0x00000]
位于：0中的GoogleARCoreInternal.LifecycleManager.get_实例（）[0x00000]
在：0中的GoogleARCore.ARCoreSession.Awake（）[0x00000]处
（文件名：行：-1）
10-25 23:41:29.255 20420-20487/soft.aasharib.arcore集成E/Unity:DllNotFoundException:arpresto_api
在（包装器管理为本机）GoogleARCoreInternal.ARCoreAndroidLifecycleManager/ExternApi:ArPresto_setEnabled（bool）
位于：0中的GoogleARCoreInternal.ARCoreAndroidLifecycleManager.DisableSession（）[0x00000]处
在0中的GoogleARCore.ARCoreSession.OnDisable（）[0x00000]处
（文件名：行：-1）