# Make posix jmavsim failed

**URL:** <https://discuss.px4.io/t/make-posix-jmavsim-failed/4124>\
**Category:** Uncategorized\
**Created:** [August 11, 2017, 9:50pm UTC](https://discuss.px4.io/t/make-posix-jmavsim-failed/4124 "2017-08-11T21:50:40Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![gpldecha](https://discuss.px4.io/user_avatar/discuss.px4.io/gpldecha/32/3569_2.png) [@gpldecha](https://discuss.px4.io/u/gpldecha)\
**Post date:** [August 11, 2017, 9:50pm UTC](https://discuss.px4.io/t/make-posix-jmavsim-failed/4124/1 "2017-08-11T21:50:40Z")

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Hi all,

I am new to using the px4 stack and I have been working my way through the installation tutorial. I have tried to run the cmd ‘make posix jmavsim’, it seems to work fine but I do not get the terminal back and thus cannot send commands to the drone.

I posted the output of the command below. I see the line WARN [simulator] bind failed which seems to indicate some failure.

I would appreciate any help,

thanks

> make posix jmavsim  
> [1/1] cd /home/guillaume/src/Firmware/build\_posix\_sitl\_default/tmp && /home/gu…e/guillaume/src/Firmware /home/guillaume/src/Firmware/build\_posix\_sitl\_default  
> args: /home/guillaume/src/Firmware/build\_posix\_sitl\_default/src/firmware/posix/px4 posix-configs/SITL/init/ekf2 none jmavsim none /home/guillaume/src/Firmware /home/guillaume/src/Firmware/build\_posix\_sitl\_default  
> SITL ARGS  
> sitl\_bin: /home/guillaume/src/Firmware/build\_posix\_sitl\_default/src/firmware/posix/px4  
> rcS\_dir: posix-configs/SITL/init/ekf2  
> debugger: none  
> program: jmavsim  
> model: none  
> src\_path: /home/guillaume/src/Firmware  
> build\_path: /home/guillaume/src/Firmware/build\_posix\_sitl\_default  
> empty model, setting iris as default  
> SITL COMMAND: /home/guillaume/src/Firmware/build\_posix\_sitl\_default/src/firmware/posix/px4 /home/guillaume/src/Firmware /home/guillaume/src/Firmware/posix-configs/SITL/init/ekf2/iris  
> data path: /home/guillaume/src/Firmware  
> commands file: /home/guillaume/src/Firmware/posix-configs/SITL/init/ekf2/iris  
> 18446744073709551593 WARNING: setRealtimeSched failed (not run as root?)

> * * *
> 
> | \_\_\_ \ \ \ / / / |  
> | |_/ / \ V / / /| |  
> | \_\_/ / \ / /_| |  
> | | / /^\ \ \_\_\_ |  
> \_| / / |\_/

> px4 starting.

> Buildfile: /home/guillaume/src/Firmware/Tools/jMAVSim/build.xml  
> INFO [dataman] Unknown restart, data manager file ‘rootfs/fs/microsd/dataman’ size is 11405140 bytes  
> INFO [platforms\_\_posix\_\_drivers\_\_ledsim] LED::init  
> INFO [platforms\_\_posix\_\_drivers\_\_ledsim] LED::init  
> WARN [simulator] bind failed

> make\_dirs:

> compile:

> create\_run\_jar:

> copy\_res:

> BUILD SUCCESSFUL  
> Total time: 0 seconds  
> Options parsed, starting Sim.  
> Starting GUI…  
> 3D [dev] 1.6.0-pre12-daily-experimental daily

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<div class="post-metadata">

**Author:** ![gpldecha](https://discuss.px4.io/user_avatar/discuss.px4.io/gpldecha/32/3569_2.png) [@gpldecha](https://discuss.px4.io/u/gpldecha)\
**Post date:** [August 11, 2017, 10:04pm UTC](https://discuss.px4.io/t/make-posix-jmavsim-failed/4124/2 "2017-08-11T22:04:31Z")

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solved. redid the instructions… rebooted… works