I believe that is due to an API change in Python 3.7 which was fixed in protobuf with this pull request: https://github.com/protocolbuffers/protobuf/pull/4862 If you use a more recent version of protobuf then that should fix the problem.
On Thu, Oct 3, 2019 at 12:26 PM ratankumar shivaratri < [email protected]> wrote: > Hi All, > > Basically I am following the tutorial from the below link. > > https://github.com/EdjeElectronics/TensorFlow-Object-Detection-on-the-Raspberry-Pi > > I have reached till the point where I have to run the below command. > "python3 setup.py build --cpp_implementation" > > I am using Raspberry pi 4 B model. Python version is 3.7 > after running the command i have received the below error. > > " > pi@raspberrypi:~/protobuf-3.5.1/python $ python3 setup.py build > --cpp_implementation > running build > running build_py > running build_ext > building 'google.protobuf.pyext._message' extension > arm-linux-gnueabihf-gcc -pthread -DNDEBUG -g -fwrapv -O2 -Wall -g > -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time > -D_FORTIFY_SOURCE=2 -fPIC -I. -I../src -I/usr/include/python3.7m -c > google/protobuf/pyext/descriptor_database.cc -o > build/temp.linux-armv7l-3.7/google/protobuf/pyext/descriptor_database.o > -Wno-write-strings -Wno-invalid-offsetof -Wno-sign-compare > arm-linux-gnueabihf-gcc -pthread -DNDEBUG -g -fwrapv -O2 -Wall -g > -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time > -D_FORTIFY_SOURCE=2 -fPIC -I. -I../src -I/usr/include/python3.7m -c > google/protobuf/pyext/repeated_composite_container.cc -o > build/temp.linux-armv7l-3.7/google/protobuf/pyext/repeated_composite_container.o > -Wno-write-strings -Wno-invalid-offsetof -Wno-sign-compare > arm-linux-gnueabihf-gcc -pthread -DNDEBUG -g -fwrapv -O2 -Wall -g > -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time > -D_FORTIFY_SOURCE=2 -fPIC -I. -I../src -I/usr/include/python3.7m -c > google/protobuf/pyext/descriptor_containers.cc -o > build/temp.linux-armv7l-3.7/google/protobuf/pyext/descriptor_containers.o > -Wno-write-strings -Wno-invalid-offsetof -Wno-sign-compare > google/protobuf/pyext/descriptor_containers.cc: In function ‘bool > google::protobuf::python::descriptor::_GetItemByKey(google::protobuf::python::PyContainer*, > PyObject*, const void**)’: > google/protobuf/pyext/descriptor_containers.cc:69:45: error: invalid > conversion from ‘const char*’ to ‘char*’ [-fpermissive] > ((*(charpp) = PyUnicode_AsUTF8AndSize(ob, (sizep))) == NULL? -1: > 0): \ > ~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~ > google/protobuf/pyext/descriptor_containers.cc:172:13: note: in expansion > of macro ‘PyString_AsStringAndSize’ > if (PyString_AsStringAndSize(key, &name, &name_size) < 0) { > ^~~~~~~~~~~~~~~~~~~~~~~~ > google/protobuf/pyext/descriptor_containers.cc:69:45: error: invalid > conversion from ‘const char*’ to ‘char*’ [-fpermissive] > ((*(charpp) = PyUnicode_AsUTF8AndSize(ob, (sizep))) == NULL? -1: > 0): \ > ~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~ > google/protobuf/pyext/descriptor_containers.cc:189:13: note: in expansion > of macro ‘PyString_AsStringAndSize’ > if (PyString_AsStringAndSize(key, &camelcase_name, &name_size) < > 0) { > ^~~~~~~~~~~~~~~~~~~~~~~~ > error: command 'arm-linux-gnueabihf-gcc' failed with exit status 1 > " > > > Please suggest on how to resolve it. I followed the below options but it > did not resolve. > https://github.com/jgarff/rpi_ws281x/issues/294 > > sudo apt-get update > sudo apt-get install build-essential python-dev git scons swig > sudo apt-get install libzbar-dev libzbar0 > sudo apt install python-dev > sudo apt-get install portaudio19-dev > sudo apt install -y python python-pip libffi-dev > python-backports.ssl-match-hostname > > -- > You received this message because you are subscribed to the Google Groups > "Protocol Buffers" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/protobuf/d0475b8e-691b-43fc-924c-587d3fe06631%40googlegroups.com > <https://groups.google.com/d/msgid/protobuf/d0475b8e-691b-43fc-924c-587d3fe06631%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "Protocol Buffers" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/protobuf/CADqAXr7DYBv94Ug8wXR%2B4zMO%2BTH7YjP1YHZVTNQ1vjD8%2B7f7qQ%40mail.gmail.com.
