Gazebo 9 start-up failed after install opencv-3.4.1: gazebo: error while loading shared libraries: libopencv_core.so.2.4

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I uninstall the old version of opencv(can't remember what version), and install the 3.4.1 from source, the installation path is /usr/local/... Then, I start gazebo with command $ gazebo it says: gazebo: error while loading shared libraries: libopencv_core.so.2.4: cannot open shared object file: No such file or directory

What the relationship between gazebo and opencv? I remember I install gazebo 9 using step-by-step command. I guess the libopencv_core.so is needed in the path /usr/lib/x86_62-linux-gnu... If you guys has any idea, please help me. Thank you!