You will need to upgrade to a newer version of tshark: Wireshark 2.2.0 Release Notes
tshark
The Qt UI, GTK+ UI, and TShark can now export packets as JSON. TShark can additionally export packets as Elasticsearch-compatible JSON.
You will need to upgrade to a newer version of tshark: Wireshark 2.2.0 2.1.1 Release Notes