make px4_sitl gazebo --> c++: internal compiler error: Killed (program cc1plus)

[MuhammadBilal1]

Describe the bug
I am trying to build the code of PX4 that I got from here. After running the "make px4_sitl gazebo" command in terminal, I am getting the below issue of "internal compiler error:"

OS: Ubuntu 18.04.04 x64 inside a VMWare environment.

My main objective is to connect Gazebo with QGroundControl, but getting hurdles while setting up the things.

Following the instructions given in this YouTube video

Here is the terminal output: (I made some formatting of log)

bash: /home/myuser/catkin_ws/devel/setup.bash: No such file or directory
myuser@ubuntu:/Downloads$ cd
myuser@ubuntu:$ cd src/Firmware/
myuser@ubuntu:~/src/Firmware$ sudo make px4_sitl gazebo
[sudo] password for myuser:
[0/4] Performing build step for 'sitl_gazebo'
[17/43] Building CXX object CMakeFiles...dir/src/gazebo_mavlink_interface.cpp.o
FAILED: CMakeFiles/gazebo_mavlink_interface.dir/src/gazebo_mavlink_interface.cpp.o
/usr/bin/c++ -DLIBBULLET_VERSION=2.87 -DLIBBULLET_VERSION_GT_282 -Dgazebo_mavlink_interface_EXPORTS -isystem

/usr/include/gazebo-9 -isystem
/usr/include/bullet -isystem
/usr/include/simbody -isystem
/usr/include/sdformat-6.0 -isystem
/usr/include/ignition/math4 -isystem
/usr/include/OGRE -isystem
/usr/include/OGRE/Terrain -isystem
/usr/include/OGRE/Paging -isystem
/usr/include/ignition/transport4 -isystem
/usr/include/ignition/msgs1 -isystem
/usr/include/ignition/common1 -isystem
/usr/include/ignition/fuel_tools1 -isystem
/usr/include/x86_64-linux-gnu/qt5 -isystem
/usr/include/x86_64-linux-gnu/qt5/QtCore -isystem
/usr/lib/x86_64-linux-gnu/qt5/mkspecs/linux-g++
-I/home/myuser/src/Firmware/Tools/sitl_gazebo/include
-I. -I/usr/include/eigen3
-I/usr/include/eigen3/eigen3
-I/usr/include/gazebo-9/gazebo/msgs
-I/home/myuser/src/Firmware/mavlink/include
-I/usr/include/Paging -isystem
/usr/include/opencv
-I/home/myuser/src/Firmware/Tools/sitl_gazebo/external/OpticalFlow/include
-I/usr/include/gstreamer-1.0
-I/usr/include/glib-2.0
-I/usr/lib/x86_64-linux-gnu/glib-2.0/include -isystem
/usr/include/uuid -isystem
/usr/include/x86_64-linux-gnu -Wno-deprecated-declarations -Wno-address-of-packed-member -fPIC
-I/usr/include/uuid
-I/usr/include/x86_64-linux-gnu -std=gnu++1z -MD -MT

CMakeFiles/gazebo_mavlink_interface.dir/src/gazebo_mavlink_interface.cpp.o -MF CMakeFiles/gazebo_mavlink_interface.dir/src/gazebo_mavlink_interface.cpp.o.d -o CMakeFiles/gazebo_mavlink_interface.dir/src/gazebo_mavlink_interface.cpp.o -c /home/myuser/src/Firmware/Tools/sitl_gazebo/src/gazebo_mavlink_interface.cpp
c++: internal compiler error: Killed (program cc1plus)
Please submit a full bug report,
with preprocessed source if appropriate.
See file:///usr/share/doc/gcc-7/README.Bugs for instructions.
[30/43] Building CXX object CMakeFiles...n.dir/src/gazebo_catapult_plugin.cpp.o
ninja: build stopped: subcommand failed.
FAILED: external/Stamp/sitl_gazebo/sitl_gazebo-build
cd /home/myuser/src/Firmware/build/px4_sitl_default/build_gazebo && /usr/bin/cmake --build .
ninja: build stopped: subcommand failed.
Makefile:205: recipe for target 'px4_sitl' failed
make: *** [px4_sitl] Error 1
myuser@ubuntu:~/src/Firmware$ 123

[julianoes]

This usually happens if you run out of RAM. Can you try to raise the RAM available for the VM and try again?

[MuhammadBilal1]

@julianoes : Thanks for responding. I just tried the solution you told, but this didn't worked. I am still getting the issue. I tried to run 2 simulators (jmavsim & gazebo), but both are not running/connecting with my QGroundControl.

I increased the RAM of my VM to 9.9GB, and its already using the 16 Processor Cores.

Detailed log is given below for both.
gazebo_log.txt
jmavsim_log.txt

[julianoes]

For Gazebo: There is an undefined symbol, so it's a linking problem.
Make sure the gazebo dependencies are installed correctly and up-to-date. Maybe run the ubuntu.sh script again to install all dependencies, and then do a make clean afterwards.

For jMAVsim: https://dev.px4.io/master/en/simulation/jmavsim.html#troubleshooting

[julianoes]

@MuhammadBilal1 It looks like RAM is still too low because you have so many cores. I suggest to enable less CPU cores for VirtualBox and that way preventing it from doing too much in parallel while trying to compile the gazebo plugins.

[julianoes]

With #14971 you can now build with fewer cores in order to avoid running out of RAM:

make px4_sitl gazebo -2

[MuhammadBilal1]

lel
@julianoes

Thank you. Your suggestions worked. This ticket can be closed now.
I decreased my cores to 2 and processors to 2 and it build successfully.
These are the specifications of my VM that worked.
Number of processors : 2
Number of cores per processor: 2
Total processor cores: 4
RAM: 8GB
OS: Ubuntu 18.04.04

[julianoes]

Cool, thanks for the feedback @MuhammadBilal1!