I get the below error

[vijayphani]

C:\src\PocketFlow-Tutorial-Codebase-Knowledge>python utils/call_llm.py
Making call...
Traceback (most recent call last):
File "C:\src\PocketFlow-Tutorial-Codebase-Knowledge\utils\call_llm.py", line 184, in
response1 = call_llm(test_prompt, use_cache=False)
File "C:\src\PocketFlow-Tutorial-Codebase-Knowledge\utils\call_llm.py", line 145, in call_llm
response_text = _call_llm_provider(prompt)
File "C:\src\PocketFlow-Tutorial-Codebase-Knowledge\utils\call_llm.py", line 69, in _call_llm_provider
raise ValueError("LLM_PROVIDER environment variable is required")
ValueError: LLM_PROVIDER environment variable is required

in the .env file.. I have provided these

GEMINI_PROJECT_ID="433548484343"
GEMINI_API_KEY="Api key from google "
GITHUB_TOKEN=<GITHUB_TOKEN>
OPENROUTER_API_KEY = <OPENROUTER_API_KEY>
OPENROUTER_MODEL = <OPENROUTER_MODEL>

What am i doing wrong. I am trying to run it locally.