ASP.NET Core 0x80004005

I am new to ASP.NET core and I am trying to just get the basic ASP.NET Core Web Application to deploy to a Windows 2012 R2 server.

I can build and run the project locally using Visual Studio express but when I deploy to the server I get a 502.5 error, the exact code is (0x80004005).

The log files are blank and the Event Viewer gives no more information than just the above error code.

I suspect there is something wrong with my Project.json file which looks like this:

{
  "dependencies": {
    "Microsoft.NETCore.App": {
      "version": "1.0.1",
      "type": "platform"
    },
    "Microsoft.ApplicationInsights.AspNetCore": "1.0.0",
    "Microsoft.AspNetCore.Mvc": "1.0.1",
    "Microsoft.AspNetCore.Routing": "1.0.1",
    "Microsoft.AspNetCore.Server.IISIntegration": "1.0.0",
    "Microsoft.AspNetCore.Server.Kestrel": "1.0.1",
    "Microsoft.Extensions.Configuration.EnvironmentVariables": "1.0.0",
    "Microsoft.Extensions.Configuration.FileExtensions": "1.0.0",
    "Microsoft.Extensions.Configuration.Json": "1.0.0",
    "Microsoft.Extensions.Logging": "1.0.0",
    "Microsoft.Extensions.Logging.Console": "1.0.0",
    "Microsoft.Extensions.Logging.Debug": "1.0.0",
    "Microsoft.Extensions.Options.ConfigurationExtensions": "1.0.0"
  },

  "tools": {
    "Microsoft.AspNetCore.Server.IISIntegration.Tools": "1.0.0-preview2-final"
  },

  "frameworks": {
    "netcoreapp1.0": {
      "imports": [
        "dotnet5.6",
        "portable-net45+win8"
      ]
    }
  },

  "buildOptions": {
    "emitEntryPoint": true,
    "preserveCompilationContext": true
  },

  "runtimeOptions": {
    "configProperties": {
      "System.GC.Server": true
    }
  },

  "publishOptions": {
    "include": [
      "wwwroot",
      "**/*.cshtml",
      "appsettings.json",
      "web.config"
    ]
  },

  "scripts": {
    "postpublish": [ "dotnet publish-iis --publish-folder %publish:OutputPath% --framework %publish:FullTargetFramework%" ]
  }
}

This is the default project.json file generated by Visual Studio.

Turns out that this was result of needing to install some windows updates and this problem:

api-ms-win-crt-runtime-l1-1-0.dll is missing when opening Microsoft Office file

Rather than install the version discussed in the above issue I whet into Programs and Features and ran a repair on Microsoft Visual C++ 2015 Redistributable.

The way I found this error was to convert the website to a standalone executable by performing the following steps:

In project.json remove "type":"platform" from the dependencies:

"dependencies": {
"Microsoft.NETCore.App": {
  "version": "1.0.1"     
},

Then define the Windows 12 R2 runtime:

"runtimes": {
   "win81-x64": {}
},

Then in the Website folder (the folder containing the project.json file) run the following commands from the command prompt:

dotnet build -r win81-x64
dotnet publish -c release -r win81-x64

The standalone app should be created in the folder \bin\Release\netcoreapp1.1\win81-x64.

Copy this to the server and then run it, a dialog should appear with a message similar to "api-ms-win-crt-runtime-l1-1-0.dll is missing".

From there google!

After doing all this I was able to run my Website from IIS.