franka-interface build faild

[Ynao3]

I have some trouble installing frank-interface.My system is ubuntu20.04, and ros-noetic and real-time kernel have been successfully installed.I installed protobuf version 3.21.8 according to the installation document of franka-interface,but the following error occurred when build franka-interface:

I think it was the protoc version's reason and I changed it to 3.20.3, which caused the following problem:

Now I don't know how to solve this problem. I also tried to change GCC version, and G++version which were useless. What version did you use when you deployed it, how did you successfully deploy franka-interface, and how should I solve this problem? Thank you.