Can anyone please advise on appropriate action?

using: https://www.basecamelectronics.com/downloads/32bit/
and the manual instructions, with simpleBGC Tiny from Flyduino, on Ubuntu LTS 16.04
and trying to upgrade from 2.50b2 to 2.60b4:

cp /usr/bin/dfu-util
~/gimbal/BGC_32bit/SimpleBGC_GUI_2_60b4/bin/dfu-util-linux

outputs: Failed to upload: Error writing firmware [74] dfu-util-linux: Failed to parse memory layout

full record:

Pausing monitoring..
Signing request..
Entering boot mode...
Waiting for bootloader to start...
Downloading firmware...
Downloading firmware...
Writing data into file
"/home/jay_jetson/gimbal/BGC_32bit/arc/SimpleBGC_GUI_2_50b3/firmware/simplebgc31_v2_60_b4_0123145f0173b797ee.bin"...
Firmware is downloaded: 131072 bytes
Writing firmware...
Writing firmware...
dfu-util 0.8
Copyright 2005-2009 Weston Schmidt, Harald Welte and OpenMoko Inc.
Copyright 2010-2014 Tormod Volden and Stefan Schmidt
This program is Free Software and has ABSOLUTELY NO WARRANTY
Please report bugs to dfu-util@lists.gnumonks.org
dfu-util-linux: Invalid DFU suffix signature
dfu-util-linux: A valid DFU suffix will be required in a future dfu-util
release!!!
dfu-util-linux: Cannot open DFU device 0483:df11
Opening DFU capable USB device...
ID 05ac:f007
Run-time device DFU version 0110
Claiming USB DFU Interface...
Setting Alternate Setting #0 ...
Determining device status: state = dfuIDLE, status = 0
dfu-util-linux: Could not read name, sscanf returned 0
dfu-util-linux: Failed to parse memory layout
dfuIDLE, continuing
DFU mode device DFU version 0110
Device returned transfer size 64
Process finished.
Error upgrading firmware: Error writing firmware: [74] dfu-util-linux:
Failed to parse memory layout