Node based on Raspberry?

The used pins can be configured in the lmic_pinmap struct; see for example examples/thethingsnetwork-send-v1/thethingsnetwork-send-v1.cpp.
I used GPIO6 for CS, because GPIO8 did not work immediately. You could try to put 8 in pins.nss.
You also need to connect the RFM95's DIO0/1/2 pins; they are used.

But first you'll need to get the code to compile.
The code compiles on my Raspberry. (with g++ version 4.9/4.9.2).
The problem could lie in the trailing comma at the end of line 528, after 0x00. That comma can safely be removed.

Did you install the wiringPi package?

Good luck.