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AlejandroSilvestri / osmap

Save and load orb-slam2 maps
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protoc error #1

Closed Shashika007 closed 5 years ago

Shashika007 commented 5 years ago

@AlejandroSilvestri

I tried to build this with orb_slam2. I also added the osmap.pb.cc and osmap.cpp to src folder, and osmap.pb.cc and osmap.h files to include folder and linked it trough CMakeLists.

Then i added -lprotobuf to target_link_libraries in CMakeLists. But i got the following error. Can you suggest me a way to solve this ? Do i need to install protobuf from the source https://github.com/protocolbuffers/protobuf/blob/master/src/README.md ?

**/ORB_SLAM2/include/osmap.pb.h:17:2: error: #error This file was generated by an older version of protoc which is

error This file was generated by an older version of protoc which is**

thank you

AlejandroSilvestri commented 5 years ago

@Shashika007

Ok, I didn't expect that. It seems we must compile generate locally src/osmap.pb.cc and include/osmap.pb.h from osmap.proto, using protobuff compiler protoc with this command line:

$ protoc --cpp_out=. osmap.proto

Copy both generated files osmap.pb.cc and osmap.pb.h to src and include folder, rewriting previous files. Then compile orb-slam2 again.

Please let me know!

If you manage to do all this in cmake, please share the repository!