I am using gnuradio 3.7, the build process stops with the following error,

and i really don't know why,

would be nice, if you, or anyone else can help me.

Thank you!

[ 42%] Building C object lib/CMakeFiles/gnuradio-gmr1.dir/home/peter/Radio/Thuraya/sylvain-gr/osmo-gmr/src/l1/tch3.c.o
[ 44%] Building C object lib/CMakeFiles/gnuradio-gmr1.dir/home/peter/Radio/Thuraya/sylvain-gr/osmo-gmr/src/l1/tch9.c.o
[ 47%] Building C object lib/CMakeFiles/gnuradio-gmr1.dir/home/peter/Radio/Thuraya/sylvain-gr/osmo-gmr/src/gsmtap.c.o
[ 50%] Building CXX object lib/CMakeFiles/gnuradio-gmr1.dir/burst_to_tagged_stream_impl.cc.o
[ 52%] Building CXX object lib/CMakeFiles/gnuradio-gmr1.dir/gsmtap_sink_impl.cc.o
/home/peter/Radio/Thuraya/sylvain-gr/osmo-gmr/gr-gmr1/lib/gsmtap_sink_impl.cc: In constructor ‘gr::gmr1::gsmtap_sink_impl::gsmtap_sink_impl(const string&, uint16_t)’:
/home/peter/Radio/Thuraya/sylvain-gr/osmo-gmr/gr-gmr1/lib/gsmtap_sink_impl.cc:58:27: error: ‘PDU_PORT_ID’ was not declared in this scope
  message_port_register_in(PDU_PORT_ID);
                           ^~~~~~~~~~~
/home/peter/Radio/Thuraya/sylvain-gr/osmo-gmr/gr-gmr1/lib/gsmtap_sink_impl.cc: In member function ‘void gr::gmr1::gsmtap_sink_impl::send_pdu(pmt::pmt_t)’:
/home/peter/Radio/Thuraya/sylvain-gr/osmo-gmr/gr-gmr1/lib/gsmtap_sink_impl.cc:94:2: error: invalid conversion from ‘const uint8_t* {aka const unsigned char*}’ to ‘uint8_t {aka unsigned char}’ [-fpermissive]
  ));
  ^
/home/peter/Radio/Thuraya/sylvain-gr/osmo-gmr/gr-gmr1/lib/gsmtap_sink_impl.cc:94:2: error: invalid conversion from ‘size_t {aka long unsigned int}’ to ‘const uint8_t* {aka const unsigned char*}’ [-fpermissive]
/home/peter/Radio/Thuraya/sylvain-gr/osmo-gmr/gr-gmr1/lib/gsmtap_sink_impl.cc:94:2: error: too few arguments to function ‘msgb* gmr1_gsmtap_makemsg(uint8_t, uint16_t, uint32_t, uint8_t, const uint8_t*, int)’
In file included from /home/peter/Radio/Thuraya/sylvain-gr/osmo-gmr/gr-gmr1/lib/gsmtap_sink_impl.cc:34:0:
/home/peter/Radio/Thuraya/sylvain-gr/osmo-gmr/gr-gmr1/../include/osmocom/gmr1/gsmtap.h:36:14: note: declared here
 struct msgb *gmr1_gsmtap_makemsg(
              ^~~~~~~~~~~~~~~~~~~
lib/CMakeFiles/gnuradio-gmr1.dir/build.make:309: recipe for target 'lib/CMakeFiles/gnuradio-gmr1.dir/gsmtap_sink_impl.cc.o' failed
make[2]: *** [lib/CMakeFiles/gnuradio-gmr1.dir/gsmtap_sink_impl.cc.o] Error 1
CMakeFiles/Makefile2:254: recipe for target 'lib/CMakeFiles/gnuradio-gmr1.dir/all' failed
make[1]: *** [lib/CMakeFiles/gnuradio-gmr1.dir/all] Error 2
Makefile:140: recipe for target 'all' failed
make: *** [all] Error 2