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I got an error when I trying to add reference from downloaded devart dot connect dll for .net core

I am in the forth step on http://blog.devart.com/entity-framework ... pport.html
- Creating Simple Code-First Entity Framework Core Application

4.Add our provider-specific assemblies to the project references:
dotConnect common assembly – Devart.Data.dll
Provider-specific assembly Devart.Data.{DataSourceName}.dll: for Oracle it would be Devart.Data.Oracle.dll, for MySQL – Devart.Data.MySql.dll, and so on.
EF7 provider assembly Devart.Data.{DataSourceName}.Entity.EF7.dll: for Oracle it would be Devart.Data.Oracle.Entity.EF7.dll, for MySQL – Devart.Data.MySql.Entity.EF7.dll, and so on.

I am getting the following error when I add the specific dll

.NET Core projects only support referencing .NET framework assemblies in this release. To reference other assemblies, they need to be included in a NuGet package and reference that package.

Folder Path : C:\Program Files (x86)\Devart\dotConnect\Oracle\Entity\EFCore

Please let me know the way of adding this dll to the project references

Thank you !

Please open the project.json file of your project and specify the content of its "frameworks" node.

Hi Shalex,

specify the content of its "frameworks" node

do you mean the dll provided by the devart should be a dependency on the .net core framework?

as follows

“frameworks”: {
“netcoreapp1.0”: {
“imports”: “dnxcore50”,
“dependencies”: {
“Microsoft.NETCore.App“: {
“type”: “platform”,
“version”: “1.0.0”
}
}
},

Please let me have the way of including the dependency in the project.json (The code snippet)

Thank you !

EF Core is being developed by Microsoft for the following target platforms:

• .NET 4.5.1 and higher -> EF Core for this platform is supported by dotConnect for Oracle
• .NET Core -> planned
• Universal Windows Platform -> under review

anoosher wrote:I am in the forth step on http://blog.devart.com/entity-framework ... pport.html
- Creating Simple Code-First Entity Framework Core Application

1. This tutorial is for
New > Project > Visual C# > Windows > Console Application
but you are trying to apply it to
New > Project > Visual C# > .NET Core > Console Application

anoosher wrote:

Code: Select all

“frameworks”: {
“netcoreapp1.0”: {
“imports”: “dnxcore50”,
“dependencies”: {
“Microsoft.NETCore.App“: {
“type”: “platform”,
“version”: “1.0.0”
}
}
},

2. We will notify you when .NET Core assemblies are added to the provider installation. With a current implementation, you can use the Devart.* assemblies with the following framework:In this case, please download nuget.exe and create a local package for adding the Devart.* assemblies to your project: https://docs.nuget.org/ndocs/create-pac ... sembly-dll.

For example:

a) run
nuget spec Devart.Data.Oracle.Entity.EFCore.dll

b) rename Devart.Data.Oracle.Entity.EFCore.dll.nuspec -> DevartEFCore.nuspec and edit its content to make it be the following: c) create the direcory lib right after DevartEFCore.nuspec and copy these assemblies (from provider's installation folder) to it:
Devart.Data.dll
Devart.Data.Oracle.dll
Devart.Data.Oracle.Entity.EFCore.dll

d) run
nuget pack DevartEFCore.nuspec

e) open your .NET Core project, navigate to Tools > NuGet Package Manager > Package Manager Console, click cogwheel to open Package Manager Settings and add a new package source which will target the directory where DevartEFCore.nupkg resides. Then select this newly created package source in your Package Manager Console and run
install-package DevartEFCore

Thank you very much !

• .NET 4.5.1 and higher -> EF Core for this platform is supported by dotConnect for Oracle
  .NET Core -> planned

We are developing a web API for Linux platform. So we are definitely need the second option i.e. .NET Core -> planned

So, We have to wait until it's been released.

Thank you again for your descriptive answer!

Regarding Shalex's post on 30 September 2016:
1. I found a nuget at https://www.nuget.org/packages/DevartEFCore/1.0.1/ and included it in the project.json of my EF library
2. I modified the above project.json to use net452 under frameworks
3. I modified the project.json of my Web app
4. I run this:
add-migration -Context DbContextClass -name v02 -Verbose -Project <EFLibrary> -startupproject <WebApp>

and got:
Your target project <EFLibrary> doesn't match your migrations assembly <WebApp>. Either change your target project or change your migrations assembly. Change your migrations assembly by using DbContextOptionsBuilder. E.g. options.UseSqlServer(connection, b => b.MigrationsAssembly(<EFLibrary>)). By default, the migrations assembly is the assembly containing the DbContext.
Change your target project to the migrations project by using the Package Manager Console's Default project drop-down list, or by executing "dotnet ef" from the directory containing the migrations project.

Note that migrations assembly is already defined in DbContextClass:

protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
{
optionsBuilder.UseOracle(
@"<Connection string>",
b => b.MigrationsAssembly( "<WebApp>"));
}


Please advice.

Could you please send us a test project so that we can reproduce the issue in our environment?

Devart is glad to announce the release of dotConnect for Oracle 9.4 with support for .NET Core: viewtopic.php?f=1&t=35436.

If you have any questions, feel free to contact us.