我试图通过使用方法Launching lib\main.dart on sdk gphone x86 in debug mode...
Parameter format not correct -
✓ Built build\app\outputs\flutter-apk\app-debug.apk.
Installing build\app\outputs\flutter-apk\app.apk...
Connecting to VM Service at ws://127.0.0.1:64116/dm5AqTZrDK0=/ws
I/CameraManagerGlobal(20232): Connecting to camera service
W/Gralloc4(20232): allocator 3.x is not supported
E/CameraCaptureSession(20232): Session 0: Exception while stopping repeating:
E/CameraCaptureSession(20232): android.hardware.camera2.CameraAccessException: CAMERA_ERROR (3): The camera device has encountered a serious error
E/CameraCaptureSession(20232): at android.hardware.camera2.impl.CameraDeviceImpl.checkIfCameraClosedOrInError(CameraDeviceImpl.java:2231)
E/CameraCaptureSession(20232): at android.hardware.camera2.impl.CameraDeviceImpl.stopRepeating(CameraDeviceImpl.java:1241)
E/CameraCaptureSession(20232): at android.hardware.camera2.impl.CameraCaptureSessionImpl.close(CameraCaptureSessionImpl.java:578)
E/CameraCaptureSession(20232): at io.flutter.plugins.camera.Camera.closeCaptureSession(Camera.java:480)
E/CameraCaptureSession(20232): at io.flutter.plugins.camera.Camera.close(Camera.java:486)
E/CameraCaptureSession(20232): at io.flutter.plugins.camera.Camera$2.onError(Camera.java:187)
E/CameraCaptureSession(20232): at android.hardware.camera2.impl.CameraDeviceImpl.notifyError(CameraDeviceImpl.java:1629)
E/CameraCaptureSession(20232): at android.hardware.camera2.impl.CameraDeviceImpl.lambda$oDs27OTfKFfK18rUW2nQxxkPdV0(Unknown Source:0)
E/CameraCaptureSession(20232): at android.hardware.camera2.impl.-$$Lambda$CameraDeviceImpl$oDs27OTfKFfK18rUW2nQxxkPdV0.accept(Unknown Source:8)
E/CameraCaptureSession(20232): at com.android.internal.util.function.pooled.PooledLambdaImpl.doInvoke(PooledLambdaImpl.java:278)
E/CameraCaptureSession(20232): at com.android.internal.util.function.pooled.PooledLambdaImpl.invoke(PooledLambdaImpl.java:201)
E/CameraCaptureSession(20232): at com.android.internal.util.function.pooled.OmniFunction.run(OmniFunction.java:97)
E/CameraCaptureSession(20232): at android.os.Handler.handleCallback(Handler.java:938)
E/CameraCaptureSession(20232): at android.os.Handler.dispatchMessage(Handler.java:99)
E/CameraCaptureSession(20232): at android.os.Looper.loop(Looper.java:223)
E/CameraCaptureSession(20232): at android.app.ActivityThread.main(ActivityThread.java:7656)
E/CameraCaptureSession(20232): at java.lang.reflect.Method.invoke(Native Method)
E/CameraCaptureSession(20232): at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:592)
E/CameraCaptureSession(20232): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:947)
I/flutter (20232): CameraException(Previous capture has not returned yet., takePicture was called before the previous capture returned.)
使用名为mapViewModel的应用程序类返回我的viewModel类AppUtils来从Resources访问指示API密钥的字符串，该方法返回字符串资源。
*我不想希望将任何上下文/活动传递给viewModel，以便使代码围绕MVVM体系结构 ：
getKey()viewModel：
class AppUtils : Application() {
fun getKey() = resources.getString(R.string.google_maps_key)
}
在运行项目时，我收到一条错误消息，指出我要引用的资源对象为空
class MapViewModel : ViewModel() {
private val appKey = AppUtils().getKey()
有什么建议吗？ 谢谢！