Solving an error on ubuntu 20.04 and 18.04 by adding a line before CMakeLists.txt file

[Hao-Starrr]

This error may occur on Ubuntu 20.04 and 18.04.

When running ./build.sh, I got

make[2]: *** [CMakeFiles/ORB_SLAM3.dir/build.make:76: CMakeFiles/ORB_SLAM3.dir/src/Tracking.cc.o] Error 1
make[1]: *** [CMakeFiles/Makefile2:711: CMakeFiles/ORB_SLAM3.dir/all] Error 2
make: *** [Makefile:84: all] Error 2

The problem can be solved by add add_compile_options(-std=c++14) before CMakeLists.txt file. Then it build successfully.

Same solving method for the error:

make[2]: *** [CMakeFiles/ORB_SLAM3.dir/build.make:375：CMakeFiles/ORB_SLAM3.dir/src/MLPnPsolver.cpp.o] Error 1
make[2]: *** [CMakeFiles/ORB_SLAM3.dir/build.make:76：CMakeFiles/ORB_SLAM3.dir/src/Tracking.cc.o] Error 1
make[2]: *** [CMakeFiles/ORB_SLAM3.dir/build.make:245：CMakeFiles/ORB_SLAM3.dir/src/Frame.cc.o] Error 1
make[2]: *** [CMakeFiles/ORB_SLAM3.dir/build.make:102：CMakeFiles/ORB_SLAM3.dir/src/LoopClosing.cc.o] Error 1
make[2]: *** [CMakeFiles/ORB_SLAM3.dir/build.make:323：CMakeFiles/ORB_SLAM3.dir/src/G2oTypes.cc.o] Error 1
make[2]: *** [CMakeFiles/ORB_SLAM3.dir/build.make:232：CMakeFiles/ORB_SLAM3.dir/src/Optimizer.cc.o] Error 1
make[1]: *** [CMakeFiles/Makefile2:390：CMakeFiles/ORB_SLAM3.dir/all] Error 2
make: *** [Makefile:84：all] Error 2

[aliwaqas333]

This solves installation problem on Ubuntu 20.04

[Tekunalogy]

Solved my issue on Ubuntu 22.04 as well

[luacghee]

same. solved my built without having to install lower pangolin versions or whatsoever. noice.