求助-视觉SLAM-安装g2o出现Qt报错
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libQGLViewer-qt5.so: undefined reference to `qt_version_tag@Qt_5.12'
collect2: error: ld returned 1 exit status
make[2]: *** [g2o/apps/g2o_viewer/CMakeFiles/g2o_viewer.dir/build.make:101: ../bin/g2o_viewer] Error 1
make[1]: *** [CMakeFiles/Makefile2:1574: g2o/apps/g2o_viewer/CMakeFiles/g2o_viewer.dir/all