Invalid Operation

[smorad]

This package appears to be crashing on startup running ROS melodic with the VN200

smorad@jnash-Precision-T7600:~/code/catkin_ws/src$ roscore &
...
smorad@jnash-Precision-T7600:~/code/catkin_ws/src$ roslaunch vectornav vectornav.launch
...
process[vectornav-1]: started with pid [9859]
[ INFO] [1558130212.188033718]: Connecting to : /dev/ttyUSB0 @ 115200 Baud
[ INFO] [1558130212.189373668]: Connecting with default at 9600
terminate called after throwing an instance of 'vn::invalid_operation'
  what():  invalid operation
[vectornav-1] process has died [pid 9859, exit code -6, cmd /home/smorad/code/catkin_ws/devel/lib/vectornav/vnpub __name:=vectornav __log:=/home/smorad/.ros/log/a9160b1a-78ee-11e9-a906-f8b1569c5fc8/vectornav-1.log].
log file: /home/smorad/.ros/log/a9160b1a-78ee-11e9-a906-f8b1569c5fc8/vectornav-1*.log
all processes on machine have died, roslaunch will exit

Vectornav seems to be functional over usb

smorad@jnash-Precision-T7600:~/code/catkin_ws/src$ stat /dev/ttyUSB0 
  File: /dev/ttyUSB0
  Size: 0               Blocks: 0          IO Block: 4096   character special file
Device: 6h/6d   Inode: 682         Links: 1     Device type: bc,0
Access: (0664/crw-rw-r--)  Uid: (    0/    root)   Gid: ( 1000/   jnash)
Access: 2019-05-17 15:01:03.775954898 -0700
Modify: 2019-05-17 15:01:03.775954898 -0700
Change: 2019-05-17 15:01:03.775954898 -0700
 Birth: -

[dawonn]

Maybe you could use GDB to figure out what line the node is crashing on? This note uses the library from vectren Ave to handle all of the communication, and I am fairly confident that I tested both the serial ports on my devices.

…

On Sat, May 18, 2019, 06:02 Steven Morad ***@***.***> wrote: This package appears to be crashing on startup running ROS melodic with the VN200 ***@***.***:~/code/catkin_ws/src$ roscore & ... ***@***.***:~/code/catkin_ws/src$ roslaunch vectornav vectornav.launch ... process[vectornav-1]: started with pid [9859] [ INFO] [1558130212.188033718]: Connecting to : /dev/ttyUSB0 @ 115200 Baud [ INFO] [1558130212.189373668]: Connecting with default at 9600 terminate called after throwing an instance of 'vn::invalid_operation' what(): invalid operation [vectornav-1] process has died [pid 9859, exit code -6, cmd /home/smorad/code/catkin_ws/devel/lib/vectornav/vnpub __name:=vectornav __log:=/home/smorad/.ros/log/a9160b1a-78ee-11e9-a906-f8b1569c5fc8/vectornav-1.log]. log file: /home/smorad/.ros/log/a9160b1a-78ee-11e9-a906-f8b1569c5fc8/vectornav-1*.log all processes on machine have died, roslaunch will exit Vectornav seems to be functional over usb ***@***.***:~/code/catkin_ws/src$ stat /dev/ttyUSB0 File: /dev/ttyUSB0 Size: 0 Blocks: 0 IO Block: 4096 character special file Device: 6h/6d Inode: 682 Links: 1 Device type: bc,0 Access: (0664/crw-rw-r--) Uid: ( 0/ root) Gid: ( 1000/ jnash) Access: 2019-05-17 15:01:03.775954898 -0700 Modify: 2019-05-17 15:01:03.775954898 -0700 Change: 2019-05-17 15:01:03.775954898 -0700 Birth: - — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#30?email_source=notifications&email_token=AAXHVF4F6J3COXXOTAXQT6LPV4TRFA5CNFSM4HNYWBSKYY3PNVWWK3TUL52HS4DFUVEXG43VMWVGG33NNVSW45C7NFSM4GUP2XEA>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AAXHVF6TE2TMHGLBSH4UN53PV4TRFANCNFSM4HNYWBSA> .

[smorad]

Issue was insufficient permissions.

chmod a+rw /dev/ttyUSB0 fixed the problem.