Socket error when running Pylot locally

[MayDGT]

Hi, team Pylot,
I manually install Pylot following this guide, but I got the following error when executing pylot.py:

ERRO Node 4: creating TCP streams errored with Os { code: 98, kind: AddrInUse, message: "Address already in use" }
thread '<unnamed>' panicked at 'Node 4: creating TCP streams errored with Os { code: 98, kind: AddrInUse, message: "Address already in use" }', src/communication/mod.rs:120:13
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
fatal runtime error: failed to initiate panic, error 5
Fatal Python error: Aborted

I use erdos==0.3.1 since erdos==0.4.0 has the compatibility issue.