[SITL crash] px4 node crashes on startup

[BRNKR]

Hey,

i can successfully compile with "make posix_sitl_default gazebo". the px4 node crashes when i run "roslaunch px4 mavros_posix_sitl.launch".

Is this a known problem?

i have compiled protobuf v3 for cartographer. i returned to protobuf v2.6.1 from source because the px4 firmware doesnt compile with v3.

what exactly means the symlink error?

[lamping7]

Delete the three symlinks in the .ros directory that point to the firmware:

1. ROMFS
2. posix-configs
3. test_data

So, cd /home/tobias/.ros/ then rm the three symbolic links
Then try again.

EDIT: Possible cause/explanation: I've had the error appear when moving the firmware to a different directory after already having run sitl. The links already exist and point to the old firmware directory.

[BRNKR]

Thanks a lot. That was the problem. as easy as that.