CMake Error Some (but not all) targets in this export set were already defined.

[JayceWen]

Problems when install polymetis from source code

Description

When l follow the tutorial in this and try to install from source. l follow the oreder and 1 ,2 ,3 is ok. In the 4th step, l run

cmake .. -DCMAKE_BUILD_TYPE=Release -DBUILD_FRANKA=ON -DBUILD_TESTS=ON -DBUILD_DOCS=ON

and l got this

By the way, l install grpc and protobuf before the cmake. And l run the grpc helloworld demo. So l guess l install grpc and protobuf successfully.

HELP!!!!

Anyone can help me, l really unfamilar with cmake or make these things.l'd appreciate that anyone can offer any useful infos.

[JayceWen]

Ok， l already solve this by modify the CMakeLists.txt. l specify the path to protobuf in function :"add_library()".:blush:
But l met some new problems that l found that python file polymetis/python/polymetis_pb2/polymetis_pb2.py is point to ../../build/polymetis_pb2.py and l guess this is generated by corresponding protoc file offered by polymetis itself which l dont know.Anyone can help me and the same is polymetis/python/polymetis_pb2/polymetis_grpc.py.
Actually the problem is importerror showing below. And l try to find the source code and found that python file polymetis/python/polymetis_pb2/polymetis_pb2.py is point to ../../build/polymetis_pb2.py .

[exhaustin]

Hello @HXLYTT, from your screenshot it seems like you are trying to build within the base conda environment. Can you try creating a conda env and activating it as per the instructions before trying to run cmake?