make_leap_usbinit.sh returns a blank file and an error

[allothernamesaretaken]

first i capture data
but
./make_leap_usbinit.sh 2 leap-init.pcap > leap_libusb_init.c.inc
tshark: -R without -2 is deprecated. For single-pass filtering use -Y.
tshark: Lua: on packet 16623 Error During execution of Listener Packet Callback:
[string "usb_c.lua"]:47: bad argument #1 to 'tostring' (value expected)

throws things to me maybe someone has seen them

[vmwsree]

on which machine did u try this