build error and warning

[daiwj5]

Hey, my friends. I've cloned all code files correctly, and when i started to build , it appeared an error below:

---

Errors << nlopt:make /root/Desktop/catkin_ws/logs/nlopt/build.make.000.log
--2020-02-12 13:56:50-- https://github.com/ethz-asl/thirdparty_library_binaries/raw/master/nlopt-2.4.2.tar.gz Resolving github.com (github.com)... 52.74.223.119 Connecting to github.com (github.com)|52.74.223.119|:443... connected. HTTP request sent, awaiting response... 302 Found Location: https://raw.githubusercontent.com/ethz-asl/thirdparty_library_binaries/master/nlopt-2.4.2.tar.gz [following] --2020-02-12 13:56:51-- https://raw.githubusercontent.com/ethz-asl/thirdparty_library_binaries/master/nlopt-2.4.2.tar.gz Resolving raw.githubusercontent.com (raw.githubusercontent.com)... 151.101.228.133 Connecting to raw.githubusercontent.com (raw.githubusercontent.com)|151.101.228.133|:443... failed: Connection refused. make[2]: [nlopt_src-prefix/src/nlopt_src-stamp/nlopt_src-download] Error 4 make[1]: [CMakeFiles/nlopt_src.dir/all] Error 2 make: *** [all] Error 2 cd /root/Desktop/catkin_ws/build/nlopt; catkin build --get-env nlopt | catkin env -si /usr/bin/make --jobserver-fds=6,7 -j; cd - ............................................................................................. Failed << nlopt:make [ Exited with code 2 ]
Failed <<< nlopt [ 3.1 seconds ]
Abandoned <<< eigen_catkin [ Unrelated job failed ]
Abandoned <<< gflags_catkin [ Unrelated job failed ]
Abandoned <<< voxblox_msgs [ Unrelated job failed ]
Abandoned <<< mav_planning_msgs [ Unrelated job failed ]
Abandoned <<< glog_catkin [ Unrelated job failed ]
Abandoned <<< ceres_catkin [ Unrelated job failed ]
Abandoned <<< eigen_checks [ Unrelated job failed ]
Abandoned <<< mav_visualization [ Unrelated job failed ]
Abandoned <<< minkindr [ Unrelated job failed ]
Abandoned <<< minkindr_conversions [ Unrelated job failed ]
Abandoned <<< mav_trajectory_generation [ Unrelated job failed ]
Abandoned <<< loco_planner [ Unrelated job failed ]
Abandoned <<< mav_planning_common [ Unrelated job failed ]
Abandoned <<< mav_planning_rviz [ Unrelated job failed ]
Abandoned <<< mav_trajectory_generation_ros [ Unrelated job failed ]
Abandoned <<< mav_path_smoothing [ Unrelated job failed ]
Abandoned <<< voxblox [ Unrelated job failed ]
Abandoned <<< voxblox_rviz_plugin [ Unrelated job failed ]
Abandoned <<< voxblox_ros [ Unrelated job failed ]
Abandoned <<< voxblox_planning_common [ Unrelated job failed ]
Abandoned <<< voxblox_loco_planner [ Unrelated job failed ]
Abandoned <<< mav_local_planner [ Unrelated job failed ]
Abandoned <<< voxblox_rrt_planner [ Unrelated job failed ]
Abandoned <<< voxblox_skeleton [ Unrelated job failed ]
Abandoned <<< voxblox_skeleton_planner [ Unrelated job failed ]
Abandoned <<< mav_planning_benchmark [ Unrelated job failed ]
[build] Summary: 2 of 29 packages succeeded.
[build] Ignored: 6 packages were skipped or are blacklisted.
[build] Warnings: None.
[build] Abandoned: 26 packages were abandoned.
[build] Failed: 1 packages failed.
[build] Runtime: 18.5 seconds total.
[build] Note: Workspace packages have changed, please re-source setup files to use them.

after i re-sourced set up files and rebuild, it threw warnings like:

---

Warnings << nlopt:make /root/Desktop/catkin_ws/logs/nlopt/build.make.001.log
--2020-02-12 13:57:56-- https://github.com/ethz-asl/thirdparty_library_binaries/raw/master/nlopt-2.4.2.tar.gz Resolving github.com (github.com)... 13.250.177.223 Connecting to github.com (github.com)|13.250.177.223|:443... connected. HTTP request sent, awaiting response... 302 Found Location: https://raw.githubusercontent.com/ethz-asl/thirdparty_library_binaries/master/nlopt-2.4.2.tar.gz [following] --2020-02-12 13:57:57-- https://raw.githubusercontent.com/ethz-asl/thirdparty_library_binaries/master/nlopt-2.4.2.tar.gz Resolving raw.githubusercontent.com (raw.githubusercontent.com)... 151.101.108.133 Connecting to raw.githubusercontent.com (raw.githubusercontent.com)|151.101.108.133|:443... connected. HTTP request sent, awaiting response... 200 OK Length: 2361992 (2.3M) [application/octet-stream] Saving to: ‘nlopt-2.4.2.tar.gz’

nlopt-2.4.2.tar.gz 100%[===================>] 2.25M 24.1KB/s in 3m 58s

2020-02-12 14:01:58 (9.70 KB/s) - ‘nlopt-2.4.2.tar.gz’ saved [2361992/2361992]

configure: WARNING: Python and Guile wrappers require --enable-shared; disabling configure: WARNING: can't find mkoctfile: won't be able to compile GNU Octave plugin make[3]: warning: jobserver unavailable: using -j1. Add '+' to parent make rule. ar: u' modifier ignored sinceD' is the default (see U') ar:u' modifier ignored since D' is the default (seeU') ……

i want to know why this happen and how to solve this problem, thanks!

[liuliucen]

Hello, have you solved this problem?

[daiwj5]

Hello, have you solved this problem?

yes, i have solved this problem

[Super-Iron-Man]

@daiwj5 Hi,I encountered the same problem, how did you solve it?

[daiwj5]

@daiwj5 Hi,I encountered the same problem, how did you solve it?

Actually, it's a connection problem for me due to some overseas servers, maybe you should try several times and change your network if needed.