Hi @tao.su
The Python Dataclasses (https://docs.python.org/3/library/dataclasses.html) were introduced in Python 3.7.
The PyPi page for RDP states that it requires Python > 3.6 refinitiv-dataplatform · PyPI
The log above shows that you are using v3.6.4
Please upgrade your python version e.g. to v3.8 or v3.9