Switch the OpenCV version from 4.1 to 3.2
Hello, I am new in ROS. Few days ago,I installed the ROS melodic on Nvidia TX2, and I want to use cv_bridge function in my project, but when I catkin_make, I got the following error message:
. . . Found OpenCV: /usr (found version "4.1.1")
. . . /usr/bin/ld: warning: libopencv_core.so.4.1, needed by /usr/lib/aarch64-linux-gnu/libopencv_core.so.3.2
Then I found there are several packages in different version under the path /usr/lib/aarch64-linux-gnu/
. Is there any method to change the OpenCV version in ROS ? Please help me.