Hello, tgis is my problem after download and install libosmore by git and install it ( no soucy) i go to osmo-tetra/src I do a make, for compile tetra-rx etc ... ok, no soucy i make a "tmp" directory i make the two fifo mkfifo ./tmp/out.float mkfifo ./tmp/out.bit Ok, no soucy for the moment I have a funcube and i'm launching with these commands ./osmo-tetra/src/demod/python/fcdp-tetra_demod_fft.py -D hw:1,0 -o ./tmp/out.float -L12500 | ./osmo-tetra/src/float_to_bits ./tmp/out.float ./tmp/out.bits | ./osmo-tetra/src/tetra-rx ./tmp/out.bits Ok the program Osmo-Tetra FCDP"is running but i have an error msg from tetra-rx ./osmo-tetra/src/tetra-rx: error while loading shared libraries: libosmocore.so.4: cannot open shared object file: No such file or directory" What is the problem ? i think the librairies are correctly installed These are the terminal return message ./osmo-tetra/src/demod/python/fcdp-tetra_demod_fft.py -D hw:1,0 -o ./tmp/out.float -L12500 | ./osmo-tetra/src/float_to_bits ./tmp/out.float ./tmp/out.bits | ./osmo-tetra/src/tetra-rx ./tmp/out.bits ./osmo-tetra/src/tetra-rx: error while loading shared libraries: libosmocore.so.4: cannot open shared object file: No such file or directory sample rate: 96000 Thank for your help