CODEWITHSUNDEEP
c#entity-framework
mohsinali1317
mohsinali1317

Reputation: 4425

Package 'EntityFramework 6.2.0' was restored using '.NETFramework,Version=v4.6.1' instead of the project target framework '.NETCoreApp,Version=v2.0'

I have made .net core 2.0 web app. I have added Entity Framework 6.2.0 using NUGET and then I get this error

Package 'EntityFramework 6.2.0' was restored using '.NETFramework,Version=v4.6.1' instead of the project target framework '.NETCoreApp,Version=v2.0'. This package may not be fully compatible with your project.

How do I fix this?

Upvotes: 42

Views: 40527

Answers (5)

Ramesh Rajendran
Ramesh Rajendran

Reputation: 38683

The problem is your entity version is confused with .NetFramework and .NetCore. Your application target framework is Asp.Net Core. So You should install package related with Asp.net Core

In your case 'EntityFramework 6.2.0' is supports by .NETFramework,Version=v4.6.1' not by '.NETCoreApp,Version=v2.0'. So use this below version of entity framework instead of yours.

PM>  Install-Package Microsoft.EntityFrameworkCore -Version 2.0.1

3rd party

If Nuget is not installed this command should do it

dotnet add package Microsoft.EntityFrameworkCore

Upvotes: 53

IdahoB
IdahoB

Reputation: 737

In my case, my project was Core 2.2. I installed (NuGet) Microsoft.EntityFrameworkCore v2.2.4 first and all built fine. Then I ACCIDENTALLY installed Microsoft.AspNet.Identity rather than Microsoft.AspNetCore.Idendity (v2.2.0). Once my eyes spotted the missing 'Core' in the .Identity package and I fixed it by uninstalling the wrong and installing the right, then the warnings went away. I expect I'm not the only one that went a little fast on the Nuget installations on a new project :)

Upvotes: 1

Wayne
Wayne

Reputation: 3519

I had the same problem, and was introduced by altering my solution to use a new TargetFramework. 

<TargetFramework>netcoreapp2.2</TargetFramework>

After the Update I tried to add the Identity Framework but failed with a warning as described.

By Adding the packages in this sequence solved it for me:

Microsoft.EntityFrameworkCore
Microsoft.AspNetCore.Identity

Upvotes: 0

Ismail Yilmaz
Ismail Yilmaz

Reputation: 239

Alternatively you can change your target framework to net461 as below.

<TargetFramework>net461</TargetFramework>

By changing your target framework to net461 makes you available to use .net core and full .net frameworks. I think that for this period of time, this approach is better. Because EF Core still hasn't got some main features like many to many relationship and some others. Sure it depends on your needs and expectations from an ORM tool.

Upvotes: 2

viperguynaz
viperguynaz

Reputation: 12174

Change your project to .NETFramework,Version=v4.6.1 or choose an Entity Framework nuget that supports .NETCoreApp,Version=v2.0

Upvotes: 0

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