Problem while installing iwlwifi on Ubuntu 16.04

I’m a new one on Ubuntu and using UP BOARD with Ubuntu 16.04 installed on it. I install iwlwifi according to this: https://github.com/HappyZ/iw_intel8260_localization/wiki/Enable-802.11mc-FTM-on-Intel-8260 While installing, after ” sudo make -j4 “, I got many ” symbolmap: 00000001: invalid section “. just like this : symbolmap: 00000001: invalid section CC [M] /lib/firmware/backport-iwlwifi/net/mac80211/aes_gcm.o symbolmap: 00000001: invalid section…

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