Imported Project DotNet.Props Was Not Found

Question

Someone please. Anyone. I've been fretting over this issue the last two days. I've read other issues that are similar. But they are not exact.

The error message is: The imported project

"C:\ProgramFiles\dotnet\sdk\1.04\Microsft\VisualStudio\v14.0\DotNet\Microsoft.DotNet.Props" was not found. Confirm that the path in the declaration is correct, and that the file exists on disk.

I am trying to run an Angular2 ASP.NET core app developed using Visual Studio Express For Web 2015 that was working perfectly, before I installed Visual Studio 2017. I think the issues is the program is looking for a version of .NET core that somehow got removed. Here is my proj.json

{
  "userSecretsId": "aspnet-Angular2-b6820071-fb17-4201-b6fd-407054319783",

  "dependencies": {
    "Microsoft.NETCore.App": "1.0.0-rc2-3002702",
    "Microsoft.ApplicationInsights.AspNetCore": "1.0.0-rc2-final",
    "Microsoft.AspNetCore.Authentication.Cookies": "1.0.0-rc2-final",
    "Microsoft.AspNetCore.Diagnostics": "1.0.0-rc2-final",
    "Microsoft.AspNetCore.Diagnostics.EntityFrameworkCore": "1.0.0-rc2-
 final",
"Microsoft.AspNetCore.Identity.EntityFrameworkCore": "1.0.0-rc2-final",
"Microsoft.AspNetCore.Mvc": "1.0.0-rc2-final",
"Microsoft.AspNetCore.Razor.Tools": {
  "version": "1.0.0-preview1-final",
  "type": "build"
},
"Microsoft.AspNetCore.Server.IISIntegration": "1.0.0-rc2-final",
"Microsoft.AspNetCore.Server.Kestrel": "1.0.0-rc2-final",
"Microsoft.AspNetCore.StaticFiles": "1.0.0-rc2-final",
"Microsoft.EntityFrameworkCore.SqlServer": "1.0.0-rc2-final",
"Microsoft.EntityFrameworkCore.Tools": "1.0.0-preview2-final",
"Microsoft.Extensions.Configuration.EnvironmentVariables": "1.0.0-rc2-final",
"Microsoft.Extensions.Configuration.Json": "1.0.0-rc2-final",
"Microsoft.Extensions.Configuration.UserSecrets": "1.0.0-rc2-final",
"Microsoft.Extensions.Logging": "1.0.0-rc2-final",
"Microsoft.Extensions.Logging.Console": "1.0.0-rc2-final",
"Microsoft.Extensions.Logging.Debug": "1.0.0-rc2-final",
"Microsoft.VisualStudio.Web.BrowserLink.Loader": "14.0.0-rc2-final",
"Microsoft.VisualStudio.Web.CodeGeneration.Tools": {
  "version": "1.0.0-preview1-final",
  "type": "build"
},
"Microsoft.VisualStudio.Web.CodeGenerators.Mvc": {
  "version": "1.0.0-preview1-final",
  "type": "build"
},
  "tools": {
        "Microsoft.AspNetCore.Razor.Tools": {
      "version": "1.0.0-preview1-final",
      "imports": "portable-net45+win8+dnxcore50"
    },
    "Microsoft.AspNetCore.Server.IISIntegration.Tools": {
      "version": "1.0.0-preview1-final",
      "imports": "portable-net45+win8+dnxcore50"
    },
    "Microsoft.EntityFrameworkCore.Tools": {
      "version": "1.0.0-preview1-final",
      "imports": [
        "portable-net45+win8+dnxcore50",
        "portable-net45+win8"
      ]
    },
    "Microsoft.Extensions.SecretManager.Tools": {
      "version": "1.0.0-preview1-final",
      "imports": "portable-net45+win8+dnxcore50"
    },
    "Microsoft.VisualStudio.Web.CodeGeneration.Tools": {
      "version": "1.0.0-preview1-final",
      "imports": [
        "portable-net45+win8+dnxcore50",
        "portable-net45+win8"
      ]
    }
  },
  "frameworks": {
    "netcoreapp1.0": {
      "imports": [
        "dotnet5.6",
        "dnxcore50",
        "portable-net45+win8"
      ]
    }
  },
  "buildOptions": {
    "emitEntryPoint": true,
    "preserveCompilationContext": true
  },
  "runtimeOptions": {
    "gcServer": true
  },
  "publishOptions": {
    "include": [
      "wwwroot",
      "Views",
      "appsettings.json",
      "web.config"
    ]
  },
    "scripts": {
          "prepublish": [ "npm install", "bower install", "gulp clean", 
    "gulp 
    min" 
    ],
      "postpublish": [ "dotnet publish-iis --publish-folder 
%publish:OutputPath% 
--framework %publish:FullTargetFramework%" ]
    },
    "EntityFramework": "6.1.3",
    "Microsoft.EntityFrameworkCore": "1.1.1"
}

Here's a screenshot of the error message I receive when attempting to merely open the application:

And here is the error message in the console when attempting to run the program:

I'd appreciate your guidance. Thanks, CM

Answer 1

To continue using project.json based projects in VS 2015, you need to add a global.json file with the following contents at the solution level (directory hierarchy at or above project.json):

{
  "sdk": {
    "version": "1.0.0-preview2-1-003177"
  }
}

Replace 1.0.0-preview2-1-003177 with the latest 1.0.0 preview 2 version installed on your machine - you can find this version as a subfolder of C:\Program Files\dotnet\sdk.