System information (version)

• OpenCV => 4.1.2
• Operating System / Platform => Windows 64 Bit
• Compiler => Visual Studio 2015

Detailed description

I compiled OpenCV4.1.2 from source , add OpenVINO R3 support and banding to python3.6.4.
When i use net.setPreferableBackend(cv2.dnn.DNN_BACKEND_INFERENCE_ENGINE)
net.setPreferableTarget(cv2.dnn.DNN_TARGET_OPENCL) to load darknet yolov3.weights, it comes to failed with log:
cv2.error: OpenCV(4.1.2) D:\software\opencv-4.1.2\modules\dnn\src\op_inf_engine.cpp:704: error: (-215:Assertion failed) Failed to initialize Inference Engine backend: Unsupported primitive of type: OpenCVLayer name: yolo_106 in function 'cv::dnn::InfEngineBackendNet::initPlugin'

Can anyone help me?

Steps to reproduce