Hi, I'm trying to build my dataset into rosbag to run VINS. However when I use ./kalibr_bagcreater --folder (mydataset) --output-bag (awsome.bag) I found that the process of importing libraries is super fast and the awsome.bag is only 4.1kB. Therefore when I run rosbag play awsome.bag it became like this:

[ INFO] [1539070182.088065262]: Opening awsome.bag No messages to play on specified topics. Exiting.

I've tried lots of ways to figure it out but all in vain. Please help me. Thanks in advance.