尝试加上框架的依赖

sample/App/AppUsingSource/AppUsingSource.csproj

@@ -2,13 +2,13 @@
   <Import Condition="Exists('obj\AppUsingSource.csproj.nuget.g.props') " Project="obj\AppUsingSource.csproj.nuget.g.props" />
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp2.1</TargetFramework>
+    <TargetFrameworks>net45;net5.0</TargetFrameworks>
     <OutputType>Exe</OutputType>
     <StartupObject />
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="TheLib.Source" Version="1.0.3" />
+    <PackageReference Include="TheLib.Source" Version="1.0.3-alpha03" />
   </ItemGroup>
   <Import Condition="Exists('obj\AppUsingSource.csproj.nuget.g.targets') " Project="obj\AppUsingSource.csproj.nuget.g.targets" />
 </Project>

sample/App/AppUsingSource/Program.cs

 using System;
+using System.Windows;
 using TheLib;
 
 namespace AppUsingSource
@@ -8,6 +9,8 @@ namespace AppUsingSource
         static void Main(string[] args)
         {
             var money = new Money(12312);
+            var v = (money, "123");
+
             Console.WriteLine(money.ToCapital());
             Console.ReadLine();
         }

sample/App/TheLib/TheLib.csproj

@@ -6,7 +6,7 @@
   </PropertyGroup>
 
    <ItemGroup> 
-     <PackageReference Include="dotnetCampus.SourceYard" Version="0.1.19393-alpha05"> 
+     <PackageReference Include="dotnetCampus.SourceYard" Version="0.1.19393-alpha06"> 
        <PrivateAssets>all</PrivateAssets> 
        <IncludeAssets>runtime; build; native; contentfiles; analyzers</IncludeAssets> 
      </PackageReference> 
@@ -18,7 +18,7 @@
  <!--  </Target> -->
 
   <ItemGroup Condition="'$(TargetFramework)'=='net45'">
-    <!-- <Reference Include="WindowsBase"></Reference> -->
+    <Reference Include="WindowsBase"></Reference>
 	  <PackageReference Include="System.ValueTuple" Version="4.5.0" />
   </ItemGroup>
 

sample/build/Version.props

 <Project>
   <PropertyGroup>
-    <Version>1.0.3-alpha01</Version>
+    <Version>1.0.3-alpha03</Version>
   </PropertyGroup>
 </Project>
\ No newline at end of file

src/dotnetCampus.SourceYard/PackFlow/NuspecFiles/NuspecContexts/NuspecMetadata.cs

@@ -119,11 +119,11 @@ namespace dotnetCampus.SourceYard.PackFlow.NuspecFiles.NuspecContexts
         [XmlElement("SourceYardPackage")]
         public string? SourceYardPackage { set; get; }
 
-        /// <summary>
-        /// 通过这个属性可以在安装源代码包的时候默认选 private assets 这样就可以让安装源代码包的项目被引用的时候，引用的项目不需要再安装源代码包
-        /// </summary>
-        [XmlElement("developmentDependency")]
-        public string? DevelopmentDependency { get; set; } = "true";
+        ///// <summary>
+        ///// 通过这个属性可以在安装源代码包的时候默认选 private assets 这样就可以让安装源代码包的项目被引用的时候，引用的项目不需要再安装源代码包
+        ///// </summary>
+        //[XmlElement("developmentDependency")]
+        //public string? DevelopmentDependency { get; set; } = "true";
 
         [XmlElement("repository")]
         public Repository? Repository { set; get; }