SITL doesn't work on Ubuntu 16.04

General
1

Hello,

Has anyone successfully run SITL on Ubuntu 16.04, I’ve tried everything I’ve found on the internet but i still end up getting errors when running sim_vehicle.py

here is output of sim_vehicle.py -w

SIM_VEHICLE: Start
SIM_VEHICLE: Killing tasks
SIM_VEHICLE: Starting up at -35.363261,149.165230,584,353 (CMAC)
SIM_VEHICLE: WAF build
SIM_VEHICLE: Configure waf
SIM_VEHICLE: "/home/mh/ws/ardu/ardupilot/modules/waf/waf-light" "configure" "--board" "sitl"
Traceback (most recent call last):
  File "/home/mh/ws/ardu/ardupilot/Tools/autotest/sim_vehicle.py", line 973, in <module>
    do_build(vehicle_dir, cmd_opts, frame_infos)
  File "/home/mh/ws/ardu/ardupilot/Tools/autotest/sim_vehicle.py", line 371, in do_build
    return do_build_waf(opts, frame_options)
  File "/home/mh/ws/ardu/ardupilot/Tools/autotest/sim_vehicle.py", line 323, in do_build_waf
    run_cmd_blocking("Configure waf", cmd_configure, check=True)
  File "/home/mh/ws/ardu/ardupilot/Tools/autotest/sim_vehicle.py", line 450, in run_cmd_blocking
    p = subprocess.Popen(cmd, **kw)
  File "/usr/lib/python2.7/subprocess.py", line 711, in __init__
    errread, errwrite)
  File "/usr/lib/python2.7/subprocess.py", line 1343, in _execute_child
    raise child_exception
OSError: [Errno 2] No such file or directory
SIM_VEHICLE: Killing tasks
2

Hello,

Try sudo pip install -U pexpect

3

Has anyone successfully run SITL on Ubuntu 16.04, I’ve tried everything I’ve
found on the internet but i still end up getting errors when running
sim_vehicle.py

Have you done:
git submodules update --init --recursive

?

Peter

4

Yes I did, same error.

5

Yes I’ve tried that, but still I get the same error.

6

Try just
waf distclean waf configure
copy past the output here
and then
waf copter
and copy past the error here

7

here is the output

waf distclean
'distclean' finished successfully (0.044s)

waf configure
Setting top to                           : /home/mh/ws/ardupilot/ArduCopter 
Setting out to                           : /home/mh/ws/ardupilot/ArduCopter/build 
No function 'configure' defined in /home/mh/ws/ardupilot/ArduCopter/wscript

 waf copter
No function 'copter' defined in /home/mh/ws/ardupilot/ArduCopter/wscript
8

What command did you run?

9

this

 sim_vehicle.py -w
10

run the command on the root of the project not on ArduCoper directory !

11

Okay here is the output of waf configure

Setting top to                           : /home/mh/ws/ardupilot 
Setting out to                           : /home/mh/ws/ardupilot/build 
Autoconfiguration                        : enabled 
Setting board to                         : sitl 
Checking for 'g++' (C++ compiler)        : /usr/lib/ccache/g++ 
Checking for 'gcc' (C compiler)          : /usr/lib/ccache/gcc 
Checking for need to link with librt     : not necessary 
Checking for HAVE_CMATH_ISFINITE         : yes 
Checking for HAVE_CMATH_ISINF            : yes 
Checking for HAVE_CMATH_ISNAN            : yes 
Checking for NEED_CMATH_ISFINITE_STD_NAMESPACE : yes 
Checking for NEED_CMATH_ISINF_STD_NAMESPACE    : yes 
Checking for NEED_CMATH_ISNAN_STD_NAMESPACE    : yes 
Checking for header endian.h                   : yes 
Checking for header byteswap.h                 : yes 
Could not load the Waf tool 'clang_compilation_database' from ['Tools/ardupilotwaf/', '/home/mh/Downloads/.waf-2.0.4-91d6a4e5781350f87eb0a75b95b84884', '/home/mh/Downloads', '/usr/lib/python2.7', '/usr/lib/python2.7/plat-x86_64-linux-gnu', '/usr/lib/python2.7/lib-tk', '/usr/lib/python2.7/lib-old', '/usr/lib/python2.7/lib-dynload', '/home/mh/.local/lib/python2.7/site-packages', '/usr/local/lib/python2.7/dist-packages', '/usr/lib/python2.7/dist-packages', '/usr/lib/python2.7/dist-packages/PILcompat', '/usr/lib/python2.7/dist-packages/gtk-2.0', '/usr/lib/python2.7/dist-packages/ubuntu-sso-client', '/usr/lib/python2.7/dist-packages/wx-3.0-gtk2']
No module named clang_compilation_database
(complete log in /home/mh/ws/ardupilot/build/config.log)

and the output of the waf copter is The project was not configured

12

did you set up your environement with https://github.com/ArduPilot/ardupilot/blob/master/Tools/scripts/install-prereqs-ubuntu.sh ?

remove the build folder manually (sudo rm -rf build/ ) and try to reconfigure

13

mb I was running waf from a different directory, now it configures and waf copter actually finishes

BUILD SUMMARY
Build directory: /home/mh/ws/ardupilot/build/sitl
Target               Text     Data  BSS    Total  
--------------------------------------------------
bin/arducopter       1611932  1962  41568  1655462
bin/arducopter-heli  1571036  1962  41376  1614374

but still the sim_vehicle.py -w outputs the same error.

14

but still the sim_vehicle.py -w outputs the same error.

Does /home/mh/ws/ardu/ardupilot/modules/waf/waf-light exist?

Peter

15

Yes waf-light is there.

16

Did you ever get resolution to this I am having the same error.