/media/yzl/C4A8E8FBE4769FDE/sr/cpp/opencv-4.2.0/modules/dnn/src/onnx/onnx_importer.cpp:327: error: (-215:Assertion failed) model_proto.has_graph() in function 'populateNet'
/media/yzl/C4A8E8FBE4769FDE/sr/cpp/opencv-4.2.0/modules/dnn/src/onnx/onnx_importer.cpp:327: error: (-215:Assertion failed) model_proto.has_graph() in function 'populateNet'
/media/yzl/C4A8E8FBE4769FDE/sr/cpp/opencv-4.2.0/modules/dnn/src/onnx/onnx_importer.cpp:327: error: (-215:Assertion failed) model_proto.has_graph() in function 'populateNet'