Gazebo-classic SITL makefile error

spitkowsky · June 5, 2023, 5:18pm

Hi everyone,

I’ve been following the SITL instructions from Gazebo Classic Simulation | PX4 Guide (main)
I’ve gotten the SITL to work with jmavsim including multiple vehicles, however I cannot seem to get the gazebo SITL to work. I have tried with gz-garden and gazebo11. I get the following error:

FAILED: external/Stamp/sitl_gazebo-classic/sitl_gazebo-classic-built
cd /home/…/PX4-Autopilot/build/px4_sitl_default/build_gazebo-classic && /usr/bin/cmake --build /home/…/PX4-Autopilot/build/px4_sitl_default/build_gazebo-classic – -j 6
ninja: build stopped: subcommand failed.
make: *** [Makefile:232: px4_sitl] Error 1

I have tried changing my swap file size from 2G to 8G to 6G all with no luck. Appreciate any help!

JulianOes · June 6, 2023, 3:37am

You could try to set it manually to -j 1 instead of -j 6 here:

github.com

PX4/PX4-Autopilot/blob/cd485b3a13cb4be6e18b31f2485c16298f68a2ae/src/modules/simulation/simulator_mavlink/sitl_targets_gazebo-classic.cmake#L60


      
          			-DCMAKE_INSTALL_PREFIX=${CMAKE_INSTALL_PREFIX}
          			-DSEND_ODOMETRY_DATA=ON
          			-DGENERATE_ROS_MODELS=ON
          		BINARY_DIR ${PX4_BINARY_DIR}/build_gazebo-classic
          		INSTALL_COMMAND ""
          		DEPENDS git_sitl_gazebo-classic
          		USES_TERMINAL_CONFIGURE true
          		USES_TERMINAL_BUILD true
          		EXCLUDE_FROM_ALL true
          		BUILD_ALWAYS 1
          		BUILD_COMMAND ${CMAKE_COMMAND} --build <BINARY_DIR> -- -j ${parallel_jobs}
          	)
          
          
	# create targets for each model/world/debugger combination
          
          
	set(debuggers
          		none
          		gdb
          		lldb
          		valgrind
          		callgrind

spitkowsky · June 6, 2023, 3:07pm

Thanks for the reply! Unfortunately this did not fix the issue. With some further investigation, I believe it is a protobuf issue. The build returns the following warning before beginning.

CMake Warning at /usr/share/cmake-3.16/Modules/FindProtobuf.cmake:499 (message): Protobuf compiler version 3.6.1 doesn’t match library version 3.18.1

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