编译ORBSLAM2时报错

Question

编译ORBSLAM2时报错
Ubuntu20.04 Noetic

执行了这句命令后，报错如下

[ 65%] Linking CXX executable ../Examples/Monocular/mono_euroc
/usr/bin/ld: ../lib/libORB_SLAM2.so: undefined reference to `DBoW2::FORB::L'
/usr/bin/ld: ../lib/libORB_SLAM2.so: undefined reference to `DUtils::Random::RandomInt(int, int)'
/usr/bin/ld: ../lib/libORB_SLAM2.so: undefined reference to `DUtils::Random::SeedRandOnce()'
/usr/bin/ld: ../lib/libORB_SLAM2.so: undefined reference to `DUtils::Random::SeedRandOnce(int)'
collect2: error: ld returned 1 exit status
make[2]: *** [CMakeFiles/mono_euroc.dir/build.make:121：../Examples/Monocular/mono_euroc] 错误 1
make[1]: *** [CMakeFiles/Makefile2:88：CMakeFiles/mono_euroc.dir/all] 错误 2
make: *** [Makefile:84：all] 错误 2

我在网上搜到了跟这个报错长得像的，说是opencv版本问题，我按照教程修改了Cmakelists.txt的这个部分

find_package(OpenCV 4.2 QUIET)
if(NOT OpenCV_FOUND)
   find_package(OpenCV 2.4.3 QUIET)
   if(NOT OpenCV_FOUND)
      message(FATAL_ERROR "OpenCV > 2.4.3 not found.")
   endif()
endif()

没有用
网上好像没看到多少人遇到这个报错，请问该怎么解决

Answer 1

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