can’t save the pcd

[jiatianluo]

terminate called after throwing an instance of 'pcl::IOException'
what(): : [pcl::PCDWriter::writeBinary] Error during open!
shutting down processing monitor...
How to solve this question? Please!

[littlelittleman]

hello, you can add the map path in the launch file, such as:
mapping_horizon.launch:

when you ctrl +c to stop the launch in terminal after paly bag, you can see the *.pcd file