The term Add-Migration is not recognized

Question

I m using this MSDN Tutorial to run in VS2015 the command PM gt  Add-Migration MyFirstMigration -context BloggingContext that ran yesterday successfully but today it s giving the following error that is also pointed out by other users here  I even deleted the Migrations folder from solution explorer and the corresponding db from SQL Express 2014 on Win 8 1 but same error  Even if I run Add-Migration MyFirstMigration I get same error   Add-Migration   The term  Add-Migration  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   Add-Migration MyFirstMigration -context BloggingContext                       CategoryInfo            ObjectNotFound   Add-Migration String      CommandNotFoundException       FullyQualifiedErrorId   CommandNotFoundException   Note  I m using latest version of ASP NET Core 1 0 and VS2015 - Update 3 released on June 27  2016   UPDATE  The following commands work fine from the project directory in the windows explorer when using command window    gt  dotnet ef migrations add MyFirstMigration --context BloggingContext  gt  dotnet ef database update --context BloggingContext   UPDATE 2a  Following is the project json file        userSecretsId    aspnet-ASPCore RTM CodeFirst test-bef835d9-9831-41a8-bc3a-cd2f1477a880       dependencies          Microsoft NETCore App            version    1 0 0          type    platform              Microsoft AspNetCore Authentication Cookies    1 0 0        Microsoft AspNetCore Diagnostics    1 0 0        Microsoft AspNetCore Diagnostics EntityFrameworkCore    1 0 0        Microsoft AspNetCore Identity EntityFrameworkCore    1 0 0        Microsoft AspNetCore Mvc    1 0 0        Microsoft AspNetCore Razor Tools            version    1 0 0-preview2-final          type    build              Microsoft AspNetCore Server IISIntegration    1 0 0        Microsoft AspNetCore Server Kestrel    1 0 0        Microsoft AspNetCore StaticFiles    1 0 0        Microsoft EntityFrameworkCore SqlServer    1 0 0        Microsoft EntityFrameworkCore SqlServer Design            version    1 0 0          type    build              Microsoft EntityFrameworkCore Tools    1 0 0-preview2-final        Microsoft Extensions Configuration EnvironmentVariables    1 0 0        Microsoft Extensions Configuration Json    1 0 0        Microsoft Extensions Configuration UserSecrets    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        Microsoft VisualStudio Web BrowserLink Loader    14 0 0        Microsoft VisualStudio Web CodeGeneration Tools            version    1 0 0-preview2-final          type    build              Microsoft VisualStudio Web CodeGenerators Mvc            version    1 0 0-preview2-final          type    build                 tools          BundlerMinifier Core    2 0 238        Microsoft AspNetCore Razor Tools    1 0 0-preview2-final        Microsoft AspNetCore Server IISIntegration Tools    1 0 0-preview2-final        Microsoft EntityFrameworkCore Tools    1 0 0-preview2-final        Microsoft Extensions SecretManager Tools    1 0 0-preview2-final        Microsoft VisualStudio Web CodeGeneration Tools            version    1 0 0-preview2-final          imports              portable-net45 win8                         frameworks          netcoreapp1 0            imports              dotnet5 6            portable-net45 win8                         buildOptions          emitEntryPoint   true       preserveCompilationContext   true          runtimeOptions          configProperties            System GC Server   true                publishOptions          include            wwwroot          Views          Areas    Views          appsettings json          web config                 scripts          prepublish      bower install    dotnet bundle          postpublish      dotnet publish-iis --publish-folder  publish OutputPath  --framework  publish FullTargetFramework

User · Answer

I just had this problem too  I closed and opened VS2015 and it  fixed  the issue

User · Answer

I ran into the same issue  Most of my projects had the same thing in tools    tools          Microsoft EntityFrameworkCore Tools    1 0 0-preview2-final      This worked fine on all but one project  I changed the entry in tools to   tools          Microsoft EntityFrameworkCore Tools          version    1 0 0-preview2-final        type    build          And then ran dotnet restore  After the restore completed  Add-Migration worked normally

User · Answer

I had the same problem and found that it was a Visual Studio versioning problem in the Solution file   I was targeting    VisualStudioVersion   14 0 25123 0  But I needed to target    VisualStudioVersion   14 0 25420 1  After making that change directly to the Solution file  EF Core cmdlets started working in the Package Manager Console

User · Answer

I had this problem and none of the previous solutions helped me  My problem was actually due to an outdated version of powershell on my Windows 7 machine - once I updated to powershell 5 it started working

User · Answer

In my case I added dependency via Nuget   Microsoft EntityFrameworkCore Tools  And then run via Package Manager Console   add-migration Initial -Context  ContextName  -StartupProject  EntryProject Name  -Project  MigrationProject Name

User · Answer

You have to know what is your Entity-Framework version  Also after that you have to check project json and control these sections   In Dependencies  check   Microsoft EntityFrameworkCore Tools        version    1 0 0-preview2-final      type    build       This section       version    1 0 0-preview2-final     is related with version of your Entity-Framework and you have to change this with that   After that the second section of the proj json is here  In the Tools section of JSON you have    Microsoft EntityFrameworkCore Tools    1 0 0-preview2-final     Also this part of code is related with your Entity-Framework and last part of code in Dependencies section   Note  After do this issues you should to close CMD and restart visual studio

User · Answer

I had this problem in Visual Studio 2013  I reinstalled NuGet Package Manager   https   marketplace visualstudio com items itemName NuGetTeam NuGetPackageManagerforVisualStudio2013

User · Answer

These are the steps I followed and it solved the problem  1 Upgraded my Power shell from version 2 to 3  2 Closed the PM Console  3 Restarted Visual Studio  4 Ran the below command in PM Console  dotnet restore  5 Add-Migration InitialMigration  It worked

User · Answer

I tried doing all the above and no luck   I downloaded the latest  net core 2 0 package and ran the commands again and it worked

User · Answer

What I had to do     1  Tools -  Nuget Package Manger -  Package Manager Settings  2  General Tab  3  Clear All NuGet Cache s   4  Restart Visual Studio

User · Answer

same issue   resolved by dong the following  1   close pm manager 2   close Visual Studio 3   Open Visual Studio 4   Open pm manager  seems the trick is to close PM Manager before closing VS

User · Answer

Ensure Microsoft EntityFrameworkCore Tools is referenced in the dependencies section of your project json  NuGet won t load the Package Manager Commands from the tools section   See NuGet Home 3023        dependencies          Microsoft EntityFrameworkCore Tools            version    1 0 0-preview2-final          type    build

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I think the answer needs updating in 2017  as MS have made some  breaking  changes that is detailed here   https   github com aspnet EntityFramework issues 7053  To summarise  you will now need a reference to EntityFrameWorkCore Tools DotNet in the Tools Section as below   Microsoft EntityFrameworkCore Tools DotNet    1 0 0   I have also posted a working project json file below in case some one runs in problems        dependencies          Microsoft NETCore App            version    1 0 1          type    platform              Microsoft AspNetCore Diagnostics    1 0 0        Microsoft AspNetCore Server IISIntegration    1 0 0        Microsoft AspNetCore Server Kestrel    1 0 1        Microsoft Extensions Logging Console    1 0 0        Microsoft AspNetCore Razor Tools            version    1 0 0-preview2-final          type    build              Microsoft AspNetCore StaticFiles    1 0 0        Microsoft AspNetCore Mvc    1 0 1        Microsoft EntityFrameworkCore SqlServer    1 0 1        Microsoft Extensions Configuration Json    1 0 1        Microsoft EntityFrameworkCore Tools            version    1 0 0-preview2-final          type    build                 tools          Microsoft AspNetCore Server IISIntegration Tools    1 0 0-preview2-final        Microsoft AspNetCore Razor Tools    1 0 0-preview2-final        Microsoft EntityFrameworkCore Tools    1 0 0-preview2-final        Microsoft EntityFrameworkCore Tools DotNet    1 0 0           frameworks          netcoreapp1 0            imports              dotnet5 6            portable-net45 win8                         buildOptions          emitEntryPoint   true       preserveCompilationContext   true          runtimeOptions          configProperties            System GC Server   true                publishOptions          include            wwwroot          web config                 scripts          postpublish      dotnet publish-iis --publish-folder  publish OutputPath  --framework  publish FullTargetFramework

User · Answer

Just try init Microsoft EntityFrameworkCore Tools  In PM execute   C  Users  lt username gt   nuget packages Microsoft EntityFrameworkCore Tools 1 0 0-preview2-final tools init ps1    It helped me with the same problem  A version of the tools might be different  It s depended of what you use in your project

User · Answer

Go to package manager console in visual studio  and execute below command      C  Users  lt YOUR USER gt   nuget packages Microsoft EntityFrameworkCore Tools  lt YOUR INSTALLED VERSION gt  tools init ps1

User · Answer

This is what worked for me  From Visual Studio click on      Tools --  NuGet Package Manager --  Package Manager Console     Then you can run Add-Migration  for example   Add-Migration InitialCreate

User · Answer

It s so simple  Just install Microsoft EntityFrameworkCore Tools package from nuget   Install-Package Microsoft EntityFrameworkCore Tools -Version 3 1 5  You can also use this link to install the latest version  Nuget package link  NET CLI command  dotnet add package Microsoft EntityFrameworkCore Tools

User · Answer

Try the following steps   1  Open project json file and Remove all Microsoft EntityFrameworkCore Tools references from dependencies and tools sections   2  Close Package Manager Console  PMC  and restart Visual Studio  3  Add under dependencies section     Microsoft EntityFrameworkCore Tools        version    1 0 0-preview2-final      type    build       4  Add under tools section   Microsoft EntityFrameworkCore Tools    1 0 0-preview2-final    5  Restart again Visual Studio 2015  6  Open the PMC and type  Add-Migration  Your First Migration Name    This happen because the PMC recognize the tools when Visual Studio is starting

[visual-studio-2015] The term "Add-Migration" is not recognized

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