Protocol Buffer Error in Arch Linux

[kanishkanarch]

On building the hector drone package, I am encountering the following Protobuf error:

error.txt

I encountered the same error in multiple other projects, like this issue in PXLRoboticsLab's ardrone repo.

Kindly help me solve this version issue.

Some outputs that might be helpful:

1. protoc --version results in version libprotoc 3.20.1
2. which protoc results in location /usr/bin/protoc
3. /usr/bin/protoc --version results in version libprotoc 3.20.1

[RAFALAMAO]

You may try this BVLC/caffe#6527.

[computational-physcis-2011301020083]

sudo apt-get remove protobuf-compiler
python -m pip install protobuf==3.6.1