Unhandled exception of type "system. io.file notfoundexception" is in an unknown module. Failed to load the file or assembly "system. runtime, version = 7.0.0, culture = neutral, public key token = b03f7f11d50a3a" or one of its dependencies.

Question

Unhandled exception of type "system. io.file notfoundexception" is in an unknown module. Failed to load the file or assembly "system. runtime, version = 7.0.0, culture = neutral, public key token = b03f7f11d50a3a" or one of its dependencies.

CongMa 0

I created a project for a console application (. NET Framework) and referenced a DLL for the YOLOv8 model generated by C # code. I want to infer images in this project by referencing the DLL for YOLOv8. However, at runtime, the prompt "Unhandled exception of type" system. io. file not found exception "is in an unknown module. Failed to load the file or assembly" system. runtime, version=7.0.0, culture=neutral, public key token=b03f7f11d50a3a "or one of its dependencies.

namespace ConsoleApp8
{
    internal class Program
    {
        static void Main(string[] args)
        {
            YOLOv8.Detectdemo.DetectDemo(@"D:/depoly/YOLOv8-main2/YOLOv8-main/Source/YoloV8.Demo/assets/input/0726145932.bmp");
        }
    }
}
//The picture is the result of the reference.

Karen Payne MVP 32,916 Reputation points

2023-09-19T15:27:14.79+00:00

English please. Also show a small reproduceable block of code.
Jiale Xue - MSFT 10,381 Reputation points Microsoft Vendor

2023-09-20T01:33:03.44+00:00

Hi , Welcome to Microsoft Q&A,

Microsoft QA only supports English service, please change your question to English.

And could you please share more detailed information?

Thanks for your understanding.
CongMa 0 Reputation points

2023-09-20T02:43:43.7433333+00:00

I have made modifications to the issue

Karen Payne MVP 32,916 Reputation points

2023-09-19T15:27:14.79+00:00

English please. Also show a small reproduceable block of code.
Jiale Xue - MSFT 10,381 Reputation points Microsoft Vendor

2023-09-20T01:33:03.44+00:00

Hi , Welcome to Microsoft Q&A,

Microsoft QA only supports English service, please change your question to English.

And could you please share more detailed information?

Thanks for your understanding.
CongMa 0 Reputation points

2023-09-20T02:43:43.7433333+00:00

I have made modifications to the issue

Answer 1

KOZ6.0 395

I hope your problem is solved.

https://stackoverflow.com/questions/74367760/could-not-load-file-or-assembly-system-runtime-version-7-0-0-0-after-ins

CongMa 0 Reputation points

2023-09-20T02:45:09.9166667+00:00

I have tried this method before, but it still doesn't work
KOZ6.0 395 Reputation points

2023-09-21T01:16:58.2933333+00:00

I searched for YOLOv8 on nuget. I can only find things for NET6 or NET7.
What will happen if you create project with NET7?
CongMa 0 Reputation points

2023-09-21T05:03:03.9033333+00:00
CongMa 0 Reputation points

2023-09-21T05:04:24.3166667+00:00

I am using NET 7.
CongMa 0 Reputation points

2023-09-21T05:08:29.6633333+00:00

The YOLOV8 project can be run, but I created another project and referenced the DLL of YOLOV8. Demo and ran an error
KOZ6.0 395 Reputation points

2023-09-21T06:10:03.08+00:00

You wrote this at the beginning.

「I created a project for a console application (. NET Framework) 」

NET7 is not .NET Framework

by the way,

YOLOv8 seems to be written in python.

I'm not familiar with python, but I think need an execution environment for python.

What happens if you install the python development environment from Visual Studio Installer?
KOZ6.0 395 Reputation points

2023-09-21T06:21:18.2266667+00:00
I asked ChatGPT

Q: What runtime is required for dlls created with Python?

A:DLLs (Dynamic Link Libraries) created with Python typically require the following runtime components:

Python Runtime: If the DLL is designed to be used in conjunction with Python, you will need the same version of the Python runtime that was used to create the DLL. It's also common for the Python interpreter itself to be included as a dependency in the DLL.

Library Dependencies: If the DLL relies on Python libraries or modules, you'll need to ensure that those dependencies are installed. These dependencies are often not bundled with the DLL, so you'll need to install the appropriate libraries in the environment where you intend to use the DLL.

Visual C++ Runtime: If the Python DLL contains C/C++ extension modules, it may require the Visual C++ runtime. You can typically obtain this runtime by installing the Microsoft Visual C++ Redistributable package.

Import Paths: Python searches specific directories (usually within the site-packages directory of Python) to find DLLs. Ensure that the DLL is placed in the correct location where Python can locate it.

Version Compatibility: Make sure that the Python version and the DLL are compatible. DLLs created with different versions of Python may encounter compatibility issues.

In summary, when using a DLL created with Python, it's essential to correctly set up the Python runtime and any necessary dependencies, install the appropriate version of Python, and ensure that the DLL is in the right location for Python to find it. Additional configuration may be required based on the specific requirements of your project and DLL.

Unhandled exception of type "system. io.file notfoundexception" is in an unknown module. Failed to load the file or assembly "system. runtime, version = 7.0.0, culture = neutral, public key token = b03f7f11d50a3a" or one of its dependencies.

1 answer

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