1132: error: (-2:Unspecified error) FAILED: fs.is_open(). in function 'cv::dnn::ReadProtoFromBinary

錯誤： OpenCV(4.1.1) C:\projects\opencv-python\opencv\modules\dnn\src\caffe\caffe_io.cpp:1132: error: (-2:Unspecified error) FAILED: fs.is_open(). Can’t open “D:\jupyterNBWork\mask_rcnn-master\mask-rcnn-cocorozen_inference_graph.pb” in function ‘cv::dnn::ReadProtoFromBinaryFile’
源碼：modelWeights =‘D:\jupyterNBWork\mask_rcnn-master\mask-rcnn-coco\frozen_inference_graph.pb’
更改：modelWeights = os.path.join(ROOT_DIR, “frozen_inference_graph.pb”);
原因：
在spyder運行後變成了：