ASP.NET Core 1.1.1 MVC with EF Core - not able to scaffold from controller class

Question

I'm currently facing an ugly Problem while trying to scaffold from Control class. I get the following error:

The error text is:

There was an error running the selected Code Generator: 'Unhandled Exception: System.TypeLoadException: Could not load typa 'Microsoft.VisualStudio.Web.CodeGeneration.ConsoleLogger' from assembly Microsoft.VisualStudio.Web.CodeGeneration.Core, Version=1.1.1.0, Culture=neutral, PublicKeyToken=adb9793829ddae60'. at Microsoft.VisualStudio.Web.CodeGeneration.Tools.Program.Main(String [] args)'

My project.json file is:

"Microsoft.EntityFrameworkCore.Design": "1.1.2",
"Microsoft.EntityFrameworkCore.SqlServer": "1.1.2",
"Microsoft.EntityFrameworkCore.SqlServer.Design": {
  "version": "1.1.1",
  "type": "build"
},
"Microsoft.EntityFrameworkCore.Tools.DotNet": "1.1.0-preview4-final",
"Microsoft.Extensions.Configuration.EnvironmentVariables": "1.1.2",
"Microsoft.Extensions.Configuration.Json": "1.1.2",
"Microsoft.Extensions.Configuration.UserSecrets": "1.1.1",
"Microsoft.Extensions.Logging": "1.1.2",
"Microsoft.Extensions.Logging.Console": "1.1.2",
"Microsoft.Extensions.Logging.Debug": "1.1.1",
"Microsoft.Extensions.Options.ConfigurationExtensions": "1.1.2",
"Microsoft.NETCore.App": {
  "version": "1.1.1",
  "type": "platform"
},
"Microsoft.VisualStudio.Web.BrowserLink.Loader": "14.1.0",
"Microsoft.VisualStudio.Web.CodeGeneration.Tools": {
  "version": "1.1.0-preview4-final",
  "type": "build"
},
"Microsoft.VisualStudio.Web.CodeGeneration.Core": "1.1.1",
"Microsoft.VisualStudio.Web.CodeGenerators.Mvc": {
  "version": "1.1.1",
  "type": "build"
},
"Microsoft.VisualStudio.Web.CodeGeneration.Design": "1.0.1"

"tools": {
"BundlerMinifier.Core": "2.4.337",
"Microsoft.AspNetCore.Razor.Tools": "1.1.0-preview4-final",
"Microsoft.AspNetCore.Server.IISIntegration.Tools": "1.0.0-preview2-final",
"Microsoft.EntityFrameworkCore.Tools.DotNet": "1.1.0-preview4-final",
"Microsoft.Extensions.SecretManager.Tools": "1.1.0-preview4-final",
"Microsoft.VisualStudio.Web.CodeGeneration.Tools": {
  "version": "1.1.0-preview4-final",
  "imports": [
    "portable-net45+win8"
  ]
}
  },

Any idea where I'm doing wrong?

I've already read some other Posts on SO, but I've found no help.

IIRC the last versions which supports VS2015 (I assume you still use that since you're on project.json - VS2017 uses csproj) is -preview2-final. Try these or switch to VS2017, migrate to csproj and use the RTM tools — Tseng
Hi Tseg, which versions should I Change exactly? I don't really understand what you are referring to — Code4Fun
The packages in the tools section, like "Microsoft.AspNetCore.Razor.Tools": "1.1.0-preview4-final",. The last version of these tools (all of it with 1.1.0-preview4-final as version) are for VS2017. Newer versions of these tools won't run anymore on VS2015 (only 1.1.0-preview2-final or older). There won't be any further updates for VS2015 so you should switch to VS2017 sooner than later — Tseng
I've tried with all versions. It does not work. I get the same error. There should be a way to let it run in VS2015 — Code4Fun
Did you change the versions in both dependencies and tools? Any nuget restore errors? I.e. Microsoft.EntityFrameworkCore.Tools.DotNet isn't there in preview2-final iirc, it was split out in preview 3 iirc. so instead you need to use Microsoft.EntityFrameworkCore.Tools and 1.0.0-preview2-final — Tseng

Code4Fun Code4Fun · Accepted Answer · 2017-07-11T16:24:35

I decided to move to Visual Studio 2017. After some troubles I got it running again, but be aware:

<PackageReference Include="Microsoft.VisualStudio.Web.CodeGeneration.Design" Version="1.1.0-msbuild3-final" PrivateAssets="All" />

<ItemGroup>
<DotNetCliToolReference Include="Microsoft.EntityFrameworkCore.Tools.DotNet" Version="1.0.0-msbuild3-final" />
<DotNetCliToolReference Include="Microsoft.Extensions.SecretManager.Tools" Version="1.0.0-msbuild3-final" />
<DotNetCliToolReference Include="Microsoft.VisualStudio.Web.CodeGeneration.Tools" Version="1.0.0-msbuild3-final" />
</ItemGroup>

I hope this will help

ASP.NET Core 1.1.1 MVC with EF Core - not able to scaffold from controller class

1 Answers