1. 找不到库?
make[2]: *** No rule to make target '/usr/lib/x86_64-linux-gnu/libIlmImf.so', needed by '../lib/libORB_SLAM2.so'. Stop.
CMakeFiles/Makefile2:178: recipe for target 'CMakeFiles/ORB_SLAM2.dir/all' failed
搜:apt-cache search IlmImf
装:sudo apt-get install libopenexr-dev
解决。(感谢江建文师弟提示)