bag file is empty after rosbag reindexing and fixing .bag.active file

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Hello everyone!

I'm trying to convert .bag.active file into .bag file so I can play it inside rqt_bag program. The thing is, I tried to follow this steps which is to:

1. rosbag reindex the .bag.active file, and then
2. rosbag fix .bag.active file into .bag file

I do get the message that Bag migration is successful. after running rosbag fix, but when trying rosbag play it says that there are 0 messages to play.

Someone else also asked this question, but there are no answers, so I'm trying again, maybe you can help me.

EDIT: To anybody else reading this question, to recap:

1. run rosbag record with --chunksize=<some_number> option. <some_number> should be a number which is appropriate for how much data in KB you are sending and/or receiving.
2. run rosbag reindex <your_bag_active_file>, e.g. rosbag reindex myfile.bag.active
3. run rosbag fix <your_bag_active_file> <new_bag_file_name>, e.g. rosbag fix myfile.bag.active mybagfile.bag