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 Thursday, 10 December 2015
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Starting with version 4.6.300 CSLA .NET supports ASP.NET 5 (.NET Core) and the CSLA-Core NuGet package includes a portable class library that targets .NET 4.6 and dnxcore50.

There does appear to be an issue with adding the NuGet package to an ASP.NET Class Library project. I assume this is due to the pre-release nature of the ASP.NET 5 tooling.

What happens is easy to replicate. Create an ASP.NET 5 web site project, then add a portable class library using the ASP.NET 5 template:

snip_20151210110307

Then add a NuGet reference to CSLA .NET 4.6.300 (currently also in pre-release):

snip_20151210110454

Then try to use features of CSLA – for example, altering the Class1 code like this:

using System;
using Csla;

namespace ClassLibrary1
{
   [Serializable]
    public class Class1 : BusinessBase<Class1>
   {
         public Class1()
         { }
   }
}

The project will not compile at this point even though one would expect that CSLA really has been referenced:

snip_20151210110903

After some experimenting I found what appears to be a solution. The project.json file must be manually edited so CSLA is listed as a dependency not only in the “net451” framework, but also in the “dotnet5.4” framework:

{
   "version": "1.0.0-*",
   "description": "ClassLibrary1 Class Library",
   "authors": [ "Rockford" ],
   "tags": [ "" ],
   "projectUrl": "",
   "licenseUrl": "",
   "frameworks": {
     "net451": {
       "dependencies": {
         "CSLA-Core": "4.6.300-Beta001"
       }
     },
     "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"
       }
     },
     “dependencies” : {
         “CSLA-Core”: “4.6.300-Beta001”
     } 
   }
}

The solution/workaround is to move the “CSLA-Core”: “4.6.300-Beta001” dependency from the “net451” framework to a global dependencies section.

With this change the project will now build.

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