Posts tagged with “devops”

.NET Deployment Issue: Ghost Dependency

Symptom

  • .NET 8 app with Polly fails on deploy: Could not load file or assembly 'Microsoft.Extensions.Http, Version=9.0.0.0'

Checks

  1. Dependencies

    • No preview packages in .csproj
    • Locked Microsoft.Extensions.Http to 8.0.0
    • Local build clean → Not a package issue

  2. Environment

    • CI/CD fixed to .NET 8 SDK
    • Cleared ~/.dotnet and ~/.nuget
    • Removed caches → Environment clean

Root Cause

  • Deploy script only overwrote files, never cleaned target dir
  • Old HappyNotes.Api.deps.json misled runtime to request v9.0.0.0

Lesson Always wipe target dir before publish:

rm -rf /your/target/directory/*