testing traffic light perception module fail

[ywangwxd]

I am using SVL simulation with Apollo latest branch, Ubuntu 18.04.

I tested lidar obstable perception, camera perception. They all work well. But when I tried this one: cyber_launch start /apollo/modules/perception/production/launch/perception_trafficlight.launch

It failed, the error message are:

hdmap_input.cc:396] Failed to call HDMap::get_signal. point: x: 0 y: 0 z: 0

There are a lot of lines of message like the above. I checked the log of map, I have not seen any error message. I am using the [Lincoln2017MKZ] veichle and BorregasAve map. The sonsor configuration is cloned from Apollo 5.0 (fully analysis). It has lidar and two front cameras.

I checked the channels, I found there gnss related channels has data streaming:

/apollo/sensor/conti_radar 9.41 /apollo/sensor/gnss/best_pose 12.37 /apollo/sensor/gnss/corrected_imu 86.53 /apollo/sensor/gnss/imu 87.27 /apollo/sensor/gnss/ins_stat 9.38 /apollo/sensor/gnss/odometry 12.37

I do not know what this error message means. Does it mean the localization is wrong? It always get position 0,0,0.