16:19:27.650/E: Wrapped CvException [org.opencv.core.CvException: cv::Exception: /build/2_4_pack-android/opencv/modules/core/src/matrix.cpp:116: error: (-215) s >= 0 in function void cv::setSize(cv::Mat&, int, int const*, const size_t*, bool)
] (images.js#137)
这个错误提示怎么回事