# File not found? Why?

**URL:** <https://forums.developer.nvidia.com/t/file-not-found-why/248471>\
**Category:** TensorRT\
**Created:** [April 2, 2023, 5:44pm UTC](https://forums.developer.nvidia.com/t/file-not-found-why/248471 "2023-04-02T17:44:05Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![davidukus](https://developer.download.nvidia.com/images/forums/profile-default-devtalk-84.png) [@davidukus](https://forums.developer.nvidia.com/u/davidukus)\
**Post date:** [April 2, 2023, 5:44pm UTC](https://forums.developer.nvidia.com/t/file-not-found-why/248471/1 "2023-04-02T17:44:05Z")

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Hello all,

Please, before I proceed, I am quiet new to programming. I have been working on a project where I utilize ONNX and TensorRT, however, I am getting an error:

FileNotFoundError: Could not find module ‘C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v11.7\bin\nvinfer.dll’ (or one of its dependencies). Try using the full path with constructor syntax.

Which means, the nvinfer.dll cannot be found in the folder, however, I did copy it there correctly as per my knowledge.

I also did try to edit the system Environment Variables with following path: C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v11.7\bin

I am using TensorRT 7.1.3.4. (I did have 8.5 version, but it is not supported by my GPU due to computing power [I am running 2060 super])  
and cudnn 8.8.1.3

Any advise?

Thank you,  
David

 ![Capture](https://global.discourse-cdn.com/nvidia/original/3X/f/5/f512d42ec88e17e72c8ab258dfb338469fdd3169.png)

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**Author:** ![AakankshaS](https://sea2.discourse-cdn.com/nvidia/user_avatar/forums.developer.nvidia.com/aakankshas/32/14047_2.png) [@AakankshaS](https://forums.developer.nvidia.com/u/AakankshaS)\
**Post date:** [April 3, 2023, 7:24am UTC](https://forums.developer.nvidia.com/t/file-not-found-why/248471/4 "2023-04-03T07:24:58Z")

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Hi @davidukus ,

Please validate the installation steps from the below link

> **[Installation Guide Overview — NVIDIA TensorRT](https://docs.nvidia.com/deeplearning/tensorrt/latest/installing-tensorrt/overview.html)**

To find the compatible versions, please check the [support matrix](https://docs.nvidia.com/deeplearning/tensorrt/support-matrix/index.html).

For onnx to Tensorrt version, please find

> **[GitHub - onnx/onnx-tensorrt: ONNX-TensorRT: TensorRT backend for ONNX](https://github.com/onnx/onnx-tensorrt)**
>
> ONNX-TensorRT: TensorRT backend for ONNX

Thanks

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<div class="post-metadata">

**Author:** ![maipham.quanghuy](https://sea2.discourse-cdn.com/nvidia/user_avatar/forums.developer.nvidia.com/maipham.quanghuy/32/240864_2.png) [@maipham.quanghuy](https://forums.developer.nvidia.com/u/maipham.quanghuy)\
**Post date:** [October 19, 2023, 5:04pm UTC](https://forums.developer.nvidia.com/t/file-not-found-why/248471/5 "2023-10-19T17:04:47Z")

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@ [davidukus](https://forums.developer.nvidia.com/u/davidukus) May I ask which installation did you use to install 11.7 that had nvinfer.dll? I have downloaded and install 11.7 and 11.7.1 toolkit in [https://developer.nvidia.com/cuda-toolkit-archive](https://developer.nvidia.com/cuda-toolkit-archive) and yet it does not include nvinfer.dll in the bin folder.