I cannot build px4 FIrmware v1.6.5 in my ubuntu14.04

I followed the wiki to install files and code, but i cannot build the code, the feedback is lake this:

and i don’t know why.

I noticed that https://dev.px4.io/en/setup/dev_env_linux_ubuntu.html suggests using ubuntu 16.04.
I also have the problem of building the firmware on 14.04. I am going to upgrade in a few minutes and see if that changes anything. Will keep you posted

Yes, update your ubuntu to 16.04. Now I am able to build the firmware. Cheers!

thanks! 16.04 is OK, I can use the Firmware now.

You are welcome! I am glad I could help.