.NET Core CLI commands fail when wrong imports were used for first run of dotnet-restore #5458

mhenderson442 · 2016-05-21T21:16:33Z

Updated my Visual Studio with RC 2 and created a Web API project.

Followed documentation guidelines for new application with existing database.

The following error was thrown hitting Scaffold-DbContext.

System.IO.FileNotFoundException: Could not load file or assembly 'Newtonsoft.Json, Version=7.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed' or one of its dependencies. The system cannot find the file specified. File name: 'Newtonsoft.Json, Version=7.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed'
    at Microsoft.DotNet.ProjectModel.ProjectReader.ReadProject(Stream stream, String projectName, String projectPath, ProjectReaderSettings settings)
   at Microsoft.DotNet.ProjectModel.ProjectReader.GetProject(String projectPath, ProjectReaderSettings settings)
    at Microsoft.EntityFrameworkCore.Tools.DispatchCommand.<>c__DisplayClass2_0.<Create>b__0()
    at Microsoft.Extensions.CommandLineUtils.CommandLineApplication.Execute(String[] args) 
   at Microsoft.EntityFrameworkCore.Tools.Program.Main(String[] args)
 Could not load file or assembly 'Newtonsoft.Json, Version=7.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed' or one of its dependencies. The system cannot find the file specified.

Got a similiar Newtonsoft related error using CLI dotnet ef.

The text was updated successfully, but these errors were encountered:

lajones · 2016-05-23T16:49:38Z

Can you include your project.json please?

mhenderson442 · 2016-05-23T17:18:11Z

I posted a question on Stack Overflow. It's not the complete project.json file, but all the relevant parts should be there. If you would like to see the complete file posted here I can do that too.

lajones · 2016-05-23T18:31:49Z

Can you try adding "Newtonsoft.Json": "7.0.1" to your dependencies and let me know if that works?

mhenderson442 · 2016-05-23T20:49:37Z

I tried adding Newtonsoft.Json: 7.0.1. I got errors with other dependencies were looking for version 8.03. I got messages about some things looking for 8.03, "and got 7.01 instead."

lajones · 2016-05-23T21:47:20Z

What happens if you add both?

mhenderson442 · 2016-05-23T22:21:11Z

When adding 7.0.1, or both 8.0.3 and 7.0.1 I get the following warnings:

Dependency conflict. Microsoft.AspNetCore.JsonPatch 1.0.0-rc2-final expected Newtonsoft.Json >= 8.0.3 but got 7.0.1

Dependency conflict. Microsoft.AspNetCore.Mvc.ViewFeatures 1.0.0-rc2-final expected Newtonsoft.Json >= 8.0.3 but got 7.0.1

Dependency conflict. Microsoft.Extensions.Configuration.Json 1.0.0-rc2-final expected Newtonsoft.Json >= 8.0.3 but got 7.0.1

The project builds with warnings, but errors when trying to use dotnet ef or Scaffold-DbContext.

lajones · 2016-05-23T22:46:05Z

Sorry - I forgot. You have to include "dnxcore50" inside the imports section for Microsoft.EntityFrameworkCore.Tools inside the tools section. This is a workaround for a problem with CLI in RC2 and should go away in RTM.

mhenderson442 · 2016-05-23T23:25:51Z

Bummer. Thought I had a remedy.

Still getting the errors with the following:

  "tools": {
    "Microsoft.EntityFrameworkCore.Tools": {
      "version": "1.0.0-preview1-final",
      "imports": [
        "portable-net45+win8+dnxcore50",
        "portable-net45+win8",
        "dnxcore50"
      ]
    }

I have tried variations of the above, but have not solved this riddle.

divega · 2016-05-23T23:29:10Z

@mhenderson442 just in case it helps, what NuGet feed are you using? Do you have a project.lock.json file?

mhenderson442 · 2016-05-23T23:35:43Z

I am using nuget.org(https://api.nuget.org/v3/index.json).

I do have a project.lock.json.

There are two references to Newtonsoft.Json 7.0.1. Excerpted below.

      "Microsoft.DotNet.ProjectModel/1.0.0-rc2-002702": {
        "type": "package",
        "dependencies": {
          "Microsoft.CSharp": "4.0.1-rc2-24027",
          "Microsoft.Extensions.DependencyModel": "1.0.0-rc2-002702",
          "Newtonsoft.Json": "7.0.1",
          "NuGet.Packaging": "3.5.0-beta-final",
          "NuGet.RuntimeModel": "3.5.0-beta-final",
          "System.Dynamic.Runtime": "4.0.11-rc2-24027",
          "System.Reflection.Metadata": "1.3.0-rc2-24027",
          "System.Runtime.Loader": "4.0.0-rc2-24027",
          "System.Runtime.Serialization.Primitives": "4.1.1-rc2-24027",
          "System.Security.Cryptography.Algorithms": "4.1.0-rc2-24027",
          "System.Threading.Thread": "4.0.0-rc2-24027",
          "System.Xml.XDocument": "4.0.11-rc2-24027"
        },

      "Microsoft.Extensions.DependencyModel/1.0.0-rc2-final": {
        "type": "package",
        "dependencies": {
          "Microsoft.DotNet.InternalAbstractions": "1.0.0-rc2-002702",
          "Newtonsoft.Json": "7.0.1",
          "System.Diagnostics.Debug": "4.0.11-rc2-24027",
          "System.Dynamic.Runtime": "4.0.11-rc2-24027",
          "System.Linq": "4.1.0-rc2-24027"
        },

mhenderson442 · 2016-05-23T23:48:04Z

If it's useful, here are some the steps I follow trying to solve the issue:

Make a change to project.json and save
Go to cmd and hit dotnet restore
If there are no errors or warnings, I hit dotnet ef

At this point I get the error you see at the start of this thread.

lajones · 2016-05-23T23:55:46Z

Unfortunately I think we are hitting #5320.

mhenderson442 · 2016-05-24T00:04:23Z

#5320 does look quite similar. I used the Web Api template to create the project. I even tried a Web Application template to see if something was not right with the template.

divega · 2016-05-25T20:58:36Z

@natemcmaster do you think this in fact may be a dupe of #5320?

natemcmaster · 2016-05-25T21:20:36Z

Depends. Is emitEntryPoint set to true? Also, what is the output when adding --verbose?

mhenderson442 · 2016-05-26T09:18:34Z

@natemcmaster

emitEntryPoint is set to true.

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

Here is the output when running Scaffold-DbContext with verbose:

Working directory: C:\Source\Repos\MercurySchool\MercurySchool\MercurySchoolApi
Executing command: dotnet ef --configuration Debug --build-base-path .\bin\ dbcontext scaffold 'Server=[Server named omitted];Data Source=[Data source omitted];Initial Catalog=MercurySchool;Persist Security Info=False;User ID=[User ID omitted];Password=[Password omitted];Pooling=False;MultipleActiveResultSets=False;Encrypt=True;TrustServerCertificate=False;Connection Timeout=30;' Microsoft.EntityFrameworkCore.SqlServer --context DbMercurySchool --output-dir DataModel --verbose
System.IO.FileNotFoundException: Could not load file or assembly 'Newtonsoft.Json, Version=7.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed' or one of its dependencies. The system cannot find the file specified. File name: 'Newtonsoft.Json, Version=7.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed'
    at Microsoft.DotNet.ProjectModel.ProjectReader.ReadProject(Stream stream, String projectName, String projectPath, ProjectReaderSettings settings)
   at Microsoft.DotNet.ProjectModel.ProjectReader.GetProject(String projectPath, ProjectReaderSettings settings)
   at Microsoft.EntityFrameworkCore.Tools.DispatchCommand.<>c__DisplayClass2_0.<Create>b__0()
   at Microsoft.Extensions.CommandLineUtils.CommandLineApplication.Execute(String[] args)
    at Microsoft.EntityFrameworkCore.Tools.Program.Main(String[] args)
 Could not load file or assembly 'Newtonsoft.Json, Version=7.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed' or one of its dependencies. The system cannot find the file specified.

natemcmaster · 2016-05-26T15:52:47Z

@mhenderson442 thanks for that. I suspect this is related to imports. Try this to fix it

Delete %USERPROFILE%\.nuget\packages\.tools\Microsoft.EntityFrameworkCore.Tools and %USERPROFILE%\.nuget\packages\Microsoft.EntityFrameworkCore.Tools. (cref https://github.com/dotnet/cli/issues/2978)
Make sure your "tools" section matches this:

Preview 1

  "tools": {
    "Microsoft.EntityFrameworkCore.Tools": {
      "version": "1.0.0-preview1-final",
      "imports": "portable-net451+win8"
    }

Preview 2

  "tools": {
    "Microsoft.EntityFrameworkCore.Tools": "1.0.0-preview2-final"
    }

cref https://docs.efproject.net/en/latest/miscellaneous/cli/dotnet.html
3. Re run dotnet restore and look in the output for errors. VS will trigger this automatically when you save project.json and spits output to "Output > Package Manager".
4. If commands still fail, can you share the files in %USERPROFILE%\.nuget\packages\.tools\Microsoft.EntityFrameworkCore.Tools?

mhenderson442 · 2016-05-26T23:39:27Z

@natemcmaster Following your instructions, dotnet ef worked.

Using Package Manager Console I got the following error:

Scaffold-DbContext : The term 'Scaffold-DbContext' is not recognized as the name of a cmdlet, function, script file, or operable program. Check the spelling of the name, or if a 
path was included, verify that the path is correct and try again.
At line:1 char:1
+ Scaffold-DbContext -Provider "Microsoft.EntityFrameworkCore.SqlServer ...
+ ~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : ObjectNotFound: (Scaffold-DbContext:String) [], CommandNotFoundException
    + FullyQualifiedErrorId : CommandNotFoundException

command dotnet ef dbcontext scaffold executed with errors, but I think that's unrelated to this issue.

Got the following error: One for more errors ocurred. (Invalid object name 'sys.sequences'.).

I am connecting to a SQL Azure database. Is this supported?

natemcmaster · 2016-05-27T00:40:09Z

👍 glad we got the first error out of the way.

dotnet ef dbcontext scaffold executed with errors, but I think that's unrelated to this issue.

Yes, can you open another issue? We support querying from SQL Azure, but I don't think we have ever testing scaffolding from a SQL Azure database. cc @lajones

This can probably be closed now. For anyone else who encounters this (cc @Kurira), the "Newtonsoft.Json" error is likely due to NuGet caching issues. Clear your caches as instructed above #5458 (comment)

mhenderson442 · 2016-05-27T12:18:09Z

From my perspective I think this issue is closed. I will tinker some more to make sure the other errors warrant a new issue.

@lajones @divega @natemcmaster Thanks for the guidance.

ole1986 · 2016-07-19T12:34:05Z

Hello,

I came to a similar problem after fixing Could not load file or assembly 'Newtonsoft.Json issue.
Now I get: Could not load file or assembly 'System, Version=2.0.5.0 [...]

EDIT: Occurs when I am trying to execute Add-Migration from the Package Manager Console

My project.json

{
  "dependencies": {
    "Microsoft.AspNetCore.Diagnostics": "1.0.0-rc2-final",
    "Microsoft.AspNetCore.Mvc": "1.0.0-rc2-final",
    "Microsoft.EntityFrameworkCore.SqlServer": "1.0.0-rc2-final",
    "Microsoft.EntityFrameworkCore.Tools": {
      "version": "1.0.0-preview1-final",
      "type": "build"
    },
    "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.Extensions.Configuration.EnvironmentVariables": "1.0.0-rc2-final",
    "Microsoft.Extensions.Configuration.Json": "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.AspNetCore.Authentication.Cookies": "1.0.0-rc2-final",
    "Microsoft.AspNetCore.Authentication": "1.0.0-rc2-final",
    "Microsoft.AspNetCore.Identity": "1.0.0-rc2-final",
    "Microsoft.AspNetCore.Identity.EntityFrameworkCore": "1.0.0-rc2-final"
  },

  "tools": {
    "Microsoft.EntityFrameworkCore.Tools": {
      "version": "1.0.0-preview1-final",
      "imports": "portable-net45+win8"
    },
    "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"
    }
  },

  "frameworks": {
    "net461": {
      "frameworkAssemblies": {
      }
    }
  },

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

Any ideas?

natemcmaster · 2016-07-19T15:36:08Z

@ole1986 as the issue describes, your imports are incorrect. For preview1, use "portable-net451+win8" See #5458 (comment)

rowanmiller added pri0 labels May 23, 2016

rowanmiller added this to the 1.0.0 milestone May 23, 2016

rowanmiller assigned lajones May 23, 2016

lajones added the blocked label May 24, 2016

mhenderson442 closed this as completed May 27, 2016

natemcmaster mentioned this issue Jun 8, 2016

EF7 RC2 Add Migration Issue (Could not load file or assembly 'Newtonsoft.Json') #5697

Closed

natemcmaster changed the title ~~Scaffold-DbContext throwing System.IO.FileNotFoundException error.~~ .NET Core CLI commands fail when wrong imports were used for first run of dotnet-restore Jun 8, 2016

Insvald mentioned this issue Jun 28, 2016

dotnet ef throws Could not load file or assembly Microsoft.DotNet.Cli.Utils, #5886

Closed

natemcmaster mentioned this issue Jul 1, 2016

dotnet ef --update-database “Microsoft.DotNet.Cli.Utils.dll” exception #5934

Closed

natemcmaster added closed-external and removed blocked type-investigation labels Jul 12, 2016

aminebizid mentioned this issue Jul 21, 2016

Could not load file or assembly 'Microsoft.DotNet.ProjectModel, Version=1.0.0.0 aspnet/JavaScriptServices#209

Closed

natemcmaster mentioned this issue Aug 8, 2016

CLI commands throw "Could not load type 'System.ConsoleColor'" on execution #6250

Closed

ryanschuler mentioned this issue Sep 13, 2016

Running dotnet ef commands results in FileNotFoundException #6521

Closed

ryanschuler mentioned this issue Jan 31, 2020

Upgrading to new dotnet version results in dotnet ef commands raising FileNotFoundException dotnet/sdk#6835

Closed

ajcvickers added closed-fixed The issue has been fixed and is/will be included in the release indicated by the issue milestone. type-unknown and removed closed-fixed The issue has been fixed and is/will be included in the release indicated by the issue milestone. type-unknown labels Oct 15, 2022

ajcvickers removed this from the 1.0.0 milestone Oct 18, 2022

ajcvickers closed this as not planned Won't fix, can't repro, duplicate, stale Oct 18, 2022

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.NET Core CLI commands fail when wrong imports were used for first run of dotnet-restore #5458

.NET Core CLI commands fail when wrong imports were used for first run of dotnet-restore #5458

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.NET Core CLI commands fail when wrong imports were used for first run of dotnet-restore #5458

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