Matlab USB Camera Error初始化媒体源

Question

我尝试在Matlab中连接USB摄像头。我还下载了所有支持包。当我尝试从网络摄像机列表连接USB摄像机时，出现错误：

>> webcamlist

ans =

  2×1 cell array

    {'Integrated Camera'}
    {'USB Camera'       }

>> cam = webcam('USB Camera')

Warning: The following error was caught while executing 'matlab.webcam.internal.WebcamController' class destructor:
Dot indexing is not supported for variables of this type.

Error in matlab.webcam.internal.WebcamController/delete

Error in matlab.webcam.internal.WebcamController

Error in matlab.webcam.internal.webcamDesktop

Error in webcam (line 95)
                    obj.webcamImpl = matlab.webcam.internal.webcamDesktop(varargin{:}); 
> In matlab.webcam.internal.WebcamController
  In matlab.webcam.internal.webcamDesktop
  In webcam (line 95) 
Error using webcam (line 116)
Error initializing media source.

有人可以帮我吗？