dnxcore50 framework support in ASP.Net 5 Class Library Package project?

问题

I am trying to develop my first ASP.Net web application and in my solution I have two projects. A Web Application and Class Library (Package) and noticed that the Web App has this for it's framework inside the project.json

"frameworks": {
    "dnxcore50": { }
}

My understanding is that code makes my Web App target Net 5.0 Core but if I look at the project.json for the Class Library I see this:

"frameworks": {
    "net451": { },
    "dotnet5.4": {
        "dependencies": {
            "Microsoft.CSharp": "4.0.1-beta-23516",
            "System.Collections": "4.0.11-beta-23516",
            "System.Linq": "4.0.1-beta-23516",
            "System.Runtime": "4.0.21-beta-23516",
            "System.Threading": "4.0.11-beta-23516"
        }
    }
}

I have never heard of dotnet5.4 and what I read from google just confuses me. I think the net451 is the equivalent to dnx451 but I am not 100% on that.

What do I need to change in my project.json to get it to target the new .Net 5.0 core?

回答1:

This is the result of the upcoming .NET Standard Platform. You can see the changes regarding this specific to rc1 here, the main part being;

Only class libraries should change to target net4x and dotnet5.x. For class libraries the recommended conversion steps are:

In project.json:

• Change dnx4x to net4x (e.g. dnx451 to net451)
• Change dnxcore50 to dotnet5.4

And in your CS files:

• Change #if DNX451 to #if NET451
• Change #if DNXCORE50 to #if DOTNET5_4

来源：https://stackoverflow.com/questions/34366900/dnxcore50-framework-support-in-asp-net-5-class-library-package-project