libc++abi.dylib: terminating with uncaught exception of type cv::Exception: OpenCV(3.4.6) /Volumes/build-storage/build/3_4_iOS-mac/opencv/modules/imgproc/src/featureselect.cpp:369: error: (-215:Assertion failed) _mask.empty() || (_mask.type() == CV_8UC1 && _mask.sameSize(_image)) in function 'goodFeaturesToTrack'
libc++abi.dylib: terminating with uncaught exception of type cv::Exception: OpenCV(3.4.6) /Volumes/build-storage/build/3_4_iOS-mac/opencv/modules/imgproc/src/featureselect.cpp:369: error: (-215:Assertion failed) _mask.empty() || (_mask.type() == CV_8UC1 && _mask.sameSize(_image)) in function 'goodFeaturesToTrack'