为什么下载的代码不加代理就无法运行

[rui12366B]

Traceback (most recent call last):
File "D:\chatgpt_academic-master\predict.py", line 12, in
try: from config_private import proxies, API_URL, API_KEY, TIMEOUT_SECONDS, MAX_RETRY, LLM_MODEL
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
ModuleNotFoundError: No module named 'config_private'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "D:\chatgpt_academic-master\main.py", line 3, in
from predict import predict
File "D:\chatgpt_academic-master\predict.py", line 13, in
except: from config import proxies, API_URL, API_KEY, TIMEOUT_SECONDS, MAX_RETRY, LLM_MODEL
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "D:\chatgpt_academic-master\config.py", line 29
assert , "请在config文件中修改API密钥, 添加海外代理之后再运行"
^
SyntaxError: invalid syntax