Vscode Library\ScriptAssemblies\Unity.RenderPipelines.Universal.Config.Runtime.dll: Copying the file failed

Unity Engine
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1

Hello, I have a problem. I’m new to Unity and trying to migrate a game I had developed in TypeScript.

I find myself needing my IDE’s debugger to test different paradigms and some issues.

The problem is that it’s impossible to attach a debugger to Unity, and I keep getting an error message.

Library\ScriptAssemblies\Unity.RenderPipelines.Universal.Config.Runtime.dll: Copying the file failed: Le processus ne peut pas accéder au fichier car ce fichier est utilisé par un autre processus.
Library\ScriptAssemblies\Unity.RenderPipelines.Core.Runtime.dll: Copying the file failed: Le processus ne peut pas accéder au fichier car ce fichier est utilisé par un autre processus.
Library\ScriptAssemblies\Unity.2D.Common.Runtime.dll: Copying the file failed: Le processus ne peut pas accéder au fichier car ce fichier est utilisé par un autre processus.

If i search why and who use those dll , it seem to be DecompilerServer.exe

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image932×741 81.8 KB

did you have any advice ?
i try :

  • restart pc and unity
  • regenerate .csproj files…
    Nothing allow me to connect vscode debbuger !?
{
    "version": "0.2.0",
    "configurations": [
        {
            "name": "Attach to Unity",
            "type": "vstuc",
            "request": "attach"
        }
     ]
}

thanks for help

2

ok solved ! it MCP decompiler that persists in vscode after decompile

taskkill /IM DecompilerServer.exe /F
1 Like
3

Google tells me it might be from Claude code… are you running that in the background?

What if you just sigterm all of those DecompilerServices instances?

4

yes it was my mcp file in vscode !!! it my fault , it used to decompile dll when no doc is avaible

{
  "mcpServers": {

    "decompiler": {
      "type": "stdio",
      "command": "C:/Tools/DecompilerServer/decompilerserver-v1.3.3-win-x64/DecompilerServer.exe",
      "args": [],
      "env": {}
    },
    "lsde": {
      "command": "npx",
      "args": ["-y", "@lsde/mcp-server@latest"],
      "env": {
        "LSDE_MCP_PORT": "9225"
      }
    }
  }
}
1 Like