Hi everyone, I use jetson tx2 with sick lms511 to build a map.When I ping to LMS511,it's OK. But when I run rosrun laser_node laser_node,I received

ERROR: I/O exception - SickLMS5xx::_setupConnection: select() failed!

ERROR: I/O exception - SickLMS5xx::_setupConnection: select() failed!

[ERROR] [1539318169.814668184]:Initialize failed!

And I found the echo of topic /scan was nothing.What's the problem?What should I do?