针对不同.NET Framework的参考Nuget包

Question

After recently migrated from ASP.NET Core RC1 to RC2, I am unable to reference dlls directly anymore. Visual Studio tells me that I can only reference Nuget packages.

So I have built a local Nuget package from the assembly. I am able to install the package without any errors. I have no issues performing a dotnet restore . However, I am unable to reference any of the namespaces of the assembly.

The referenced package name is spfcommon.dll , and the assembly targets .Net Framework 4.0 . My project targets .Net Framework 4.5.1 . I don't know if the difference in target frameworks is causing this issue.

My project.json file:

"frameworks": {
  "net451": {
    "dependencies": {
    },
    "frameworkAssemblies": {
      "System.Runtime": "4.0.10.0"
    }
  }
},
"dependencies": {
  "Common": "4.0.0-*",
  "Data": "4.0.0-*",
  "spfcommon.dll": "1.0.1"   <-- Cannot reference namespaces
},

The error is:

The type or namespace name 'SPF' could not be found (are you missing a using directive or an assembly reference?)

Any help is appreciated.

Answer 1

Had a very similar problem today, caused me a few hours grief but I found that if I deleted the "wrap" folder and then restored the packages it would work again.

Hopefully it's the same as your issue.