Dear Bilguun, please stop spamming the mailing list with every single error message you get. This is not a pastebin after all. Don't get me wrong, I am not trying to turn you out-of-doors, but you should be able to resolve such issues yourself. In this particular case it's obvious, just read your own message: it already contains half of answer. Most likely, your configuration file missing the proper alignment, have a look at the examples: https://git.osmocom.org/osmo-bts/tree/doc/examples/trx https://bastienbaranoff.wordpress.com/2018/08/10/gsm-base-station-with-two-… This article might be outdated. I recommend to follow our own wiki. If you are going to run a base station, you should really understand what you're doing, but not just copy-pasting from random articles. There is a tutorial about CalypsoBTS, read it carefully: https://osmocom.org/projects/baseband/wiki/CalypsoBTS Thanks for your understanding. With best regards, Vadim Yanitskiy.