Hello,
 
i tried to install grgsm by this tutorial: https://osmocom.org/projects/baseband/wiki/SDR_PHY
But after installation the GSMTAP-Header-Remover Blocks are missing in Gnuradio. There haven`t been any error messages while installation and all other (gsm) blocks are available.
 
It would be great, if someone could help me.
 
Thanks