Could not load file or assembly 'Microsoft.Extensions.Hosting, Version=8.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60'

Question

I created a worker service based application project named WorkerService1. Visual Studio Community 2022 can build WorkerService1 project successfully. Than I copied WorkerService1.dll, WorkerService1.exe, and WorkerService1.runtimeconfig.json files to D:\WorkerService folder and running WorkerService1.exe from MS-DOS prompt. But it failed to run with the following error messages. Should I copy other files to D:\WorkerService folder?

Unhandled exception. System.IO.FileNotFoundException: Could not load file or assembly 'Microsoft.Extensions.Hosting, Version=8.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60'. 系統找不到指定的檔案。
File name: 'Microsoft.Extensions.Hosting, Version=8.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60'
   at Program.<Main>$(String[] args)

"

Answer 1

Hi, longevity uyl

The error means application cannot find DLL Microsoft.Extensions.Hosting.
You need to put the DLLs required in the same folder as the exe.

Best regards,

Minxin Yu

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