# Nemo guardrails

**URL:** <https://forums.developer.nvidia.com/t/nemo-guardrails/341597>\
**Category:** NVIDIA NeMo\
**Tags:** nemo-guardrails, generative\_ai\
**Created:** [August 8, 2025, 7:38am UTC](https://forums.developer.nvidia.com/t/nemo-guardrails/341597 "2025-08-08T07:38:13Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![ayaan27d2000](https://developer.download.nvidia.com/images/forums/profile-default-devtalk-84.png) [@ayaan27d2000](https://forums.developer.nvidia.com/u/ayaan27d2000)\
**Post date:** [August 8, 2025, 7:38am UTC](https://forums.developer.nvidia.com/t/nemo-guardrails/341597/1 "2025-08-08T07:38:13Z")

</div>

Hi, I am using nemo guardrails for my solution and am facing the below error while configuring my azure openai endpoint in my config.yml:  
This is what my config looks like:  
models:

- type: main  
engine: azure  
model: gpt-4o  
parameters:  
azure\_endpoint: ““  
deployment\_name: ““  
api\_version: ““  
api\_key: ““

I am getting following error  
File “nemoguardrails\actions\action\_dispatcher.py”, line 253, in execute\_action  
raise e  
File “nemoguardrails\actions\action\_dispatcher.py”, line 214, in execute\_action  
result = await result  
^^^^^^^^^^^^  
File “nemoguardrails\library\self\_check\input\_check\actions.py”, line 72, in self\_check\_input  
response = await llm\_call(llm, prompt, stop=stop)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File “nemoguardrails\actions\llm\utils.py”, line 96, in llm\_call  
raise LLMCallException(e)  
nemoguardrails.actions.llm.utils.LLMCallException: LLM Call Exception: ‘NoneType’ object has no attribute ‘create’

Would really appreciate some help here, thanks!