Error installing on Windows

```
Traceback (most recent call last):
  File "H:\GPT-Agent\server\webserver.py", line 15, in <module>
    from agent_convo import rp
  File "H:\GPT-Agent\server\agent_convo.py", line 28, in <module>
    google_client_id = os.environ['google_client_id']
                       ~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^
  File "<frozen os>", line 679, in __getitem__
KeyError: 'google_client_id'
```