其实，这些问题，之前已经遇到过一次这种情况了，但是当时懒癌犯了，没记录，导致这次又得到处翻解决方案
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error: No rule to make target ‘/usr/lib/libOpenNI.so’, needed by ‘bin/euroc_rectify’
说是pangolin安装失败或者被破坏掉了
解决方案 -
/home/mk/anaconda3/lib/libpng16.so.16: undefined reference to ’inflateValidate@ZLIB_1.2.9’
collect2: error: ld returned 1 exit status
CMakeFiles/mono_euroc.dir/build.make:158: recipe for target ‘…/Examples/Monocular/mono_euroc’ failed
make[2]: […/Examples/Monocular/mono_euroc] Error 1
CMakeFiles/Makefile2:67: recipe for target ‘CMakeFiles/mono_euroc.dir/all’ failed
make[1]: [CMakeFiles/mono_euroc.dir/all] Error 2
make[1]: Waiting for unfinished jobs…
是因为anaconda里面自带的版本冲突了解决办法把
export LD_LIBRARY_PATH=~/anaconda3/lib:$LD_LIBRARY_PATH加到~/.bashrc里面去，然后发现后续一堆错，并且改不成功然后因为问题是libpng引起的，直接卸载掉，反正也用不上
最终解决办法参考该处conda remove libpng以后要用，就安装一下libpng6就行
