发布Asp.net Core应用至Azure时遇异常：DeploymentManager初始化失败

Hey there, I’ve hit this exact 'DeploymentManager' initialization error a handful of times when publishing ASP.NET Core apps to Azure, so let’s dive into some targeted fixes that might resolve this for you—since the generic blog solutions didn’t work out.

• Check Web Deploy Installation Integrity
  This error often pops up when your local Web Deploy installation is corrupted or incomplete. Try these steps:

  • Uninstall Web Deploy from Control Panel > Programs and Features (look for "Microsoft Web Deploy X.X").
  • Download the latest official version of Web Deploy, run the installer with administrative privileges, and select the Complete installation option (skip the Typical setup to ensure all components are installed).
  • Restart Visual Studio and attempt publishing again.

• Verify Visual Studio’s Web Publish Components
  Sometimes the issue lies with missing or outdated publish tools in Visual Studio:

  • Open Visual Studio, go to Tools > Get Tools and Features.
  • In the installer, switch to the Individual components tab and search for Web Development Tools.
  • Make sure Web Deploy and ASP.NET and Web Development are checked. If they’re missing, install them and restart Visual Studio before trying to publish.

• Recreate Your Publish Profile
  Corrupted publish profiles can cause weird initialization glitches. Let’s start fresh:

  • In your project, navigate to the Properties > PublishProfiles folder.
  • Delete the existing .pubxml and .pubxml.user files linked to your Azure deployment.
  • Right-click your project, select Publish, and walk through the Azure setup wizard again to create a new publish profile.

• Resolve .NET Framework Version Conflicts
  Web Deploy depends on the .NET Framework (even for ASP.NET Core apps), so version mismatches can trigger this error:

  • Ensure your local machine has the latest .NET Framework 4.8 installed.
  • Double-check that your project’s target framework matches the runtime version configured on your Azure App Service (you can confirm this in the Azure Portal under your App Service > Configuration > General settings).

• Test Deployment via Command Line
  To rule out Visual Studio-specific issues, try deploying using the .NET CLI and Azure CLI:

  1. Open a command prompt in your project directory and run:

     dotnet publish -c Release -o ./publish
     

  2. Then deploy the published files with Azure CLI:

     az webapp deploy --resource-group <your-resource-group-name> --name <your-app-service-name> --src-path ./publish
     

  If this works, the problem is likely with Visual Studio’s Web Deploy integration—try repairing Visual Studio via the installer to fix it.

If none of these steps work, double-check that Web Deploy is enabled on your Azure App Service (go to the Azure Portal > your App Service > Deployment Center > Settings) and that your local firewall isn’t blocking port 8172 (the default port for Web Deploy).

内容的提问来源于stack exchange，提问作者kiran Wilson