How to take camera picture from google ml kit face detector?

i try camera picture use https://github.com/fernandoptrr/flutter-camera-practice, this work fine with XFile picture = await _cameraController.takePicture();

then try google ml kit example, https://github.com/bharat-biradar/Google-Ml-Kit-plugin . I try face detector and try screenshot with takePicture(). It give "Error occured while taking picture cannot use a surface that wasn't configured".

can someone give me example take picture camera with google ml kit?

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