apt -f install to fix dependency errorsapt updateapt install gnuradio gnuradio-dev osmo-sdr libosmosdr-dev libosmocore libosmocore-dev
apt install cmake libboost-all-dev libcppunit-dev swigdoxygen liblog4cpp5-dev python-scipygit clone https://github.com/ptrkrysik/gr-gsm.gitcd gr-gsm mkdir build cd build cmake .. make sudo make install
mkdir~/.gnuradio/
cd~/.gnuradio/
nanoconfig.conf
then paste the following text:
[grc] local_blocks_path=/usr/local/share/gnuradio/grc/blocks
CTRL+O to save and CTRL+X to exit nano
the run : sudo ldconfig