android jni undefined reference to ‘cv::imread

c++代码：

#include <opencv2/opencv.hpp>

    string path="aaa.jpg";

    cv::Mat mat = cv::imread(path.c_str());

配置：

set(OpenCV_DIR ${CMAKE_SOURCE_DIR}/opencv-mobile-4.5.4-android/sdk/native/jni)
find_package(OpenCV REQUIRED core imgproc highgui)