If you give someone a program , you will frustrate them for a day; if you teach them how to program, you will frustrate them for a lifetime.IT 這段話的意思是，如果你交給某人一隻程式，你將折磨他一整天;如果你教會某人如何寫程式，你將折磨他一輩子。

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Dec 31 Sun 2017 22:10
ASP.NET Core: You must add a reference to assembly mscorlib, version=4.0.0.0 - xishuai

文章出處

ASP.NET Core 引用外部程序包的時候，有時會出現下面的錯誤：

The type 'Object' is defined in an assembly that is not referenced. You must add a reference to assembly 'mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'. Sample.Infrastructure..NETStandard,Version=v1.6

解決方式：添加"Microsoft.NETCore.Portable.Compatibility": "1.0.0"引用。

{
  "version": "1.0.0-*",

  "dependencies": {
    "NETStandard.Library": "1.6.0",
    "Microsoft.NETCore.Portable.Compatibility": "1.0.0"
  },

  "frameworks": {
    "netstandard1.6": {
      "imports": [ "dnxcore50", "net451", "portable-net45+win81" ]
    }
  }
}