the error in pip install . after using the cd FinRL successfully

error: command 'swig.exe' failed: No such file or directory
[end of output]

note: This error originates from a subprocess, and is likely not a problem with pip.
error: legacy-install-failure

× Encountered error while trying to install package.
╰─> box2d-py

After facing this error, I tried to SWIG and install box2d.file (maybe there are some errors or other details that I didn't do well), but it didn't work well and still this error. Could you please help me to solve this error? pleaseeeee and helppppp~(crying) Thx~~
@zhumingpassional