Test discovery fails when dependencies are added under net451 framework

[kirthik]

Here is how my project.json looks

{
    "dependencies": {
        "Xunit.KRunner": "1.0.0-*"
    },
    "commands": { "test": "Xunit.KRunner" },
    "frameworks": {
        "net451": {
            "dependencies": {
                "Microsoft.Web.Administration": "7.0.0.0"
            }
        }
    }
}

I have a simple test which accesses ServerManager

        [Fact]
        public void TestHello(string data)
        {
            ServerManager server = new ServerManager();
            <more code>
        }

Test discovery fails
But if I move "Microsoft.Web.Administration": "7.0.0.0" from net451 dependencies to global dependencies section, xunit discovers the tests correctly

[glennc]

Right now you need to explicitly build ctrl + shift + b in order for test discovery to work.

See: #582