为什么使用命令 Update-Package --reinstall 后安装了新软件包答案

【问题标题】：Why are new packages been installed after using command Update-Package --reinstall为什么使用命令 Update-Package --reinstall 后安装了新软件包
【发布时间】：2018-05-29 14:06:20
【问题描述】：

我有一个解决方案，其中很少有 nuget 包。

那些包引用了不同的网络框架。例如。很少有人针对 net451，有些针对 net452，有些针对 net461。

我的项目有 net461 框架。所以我使用命令Update-Package --reinstall 重新安装了针对net461 框架的包。

成功了，但我不知道为什么添加的包比我已经添加的包多？

更新我的包之前。

<package id="EnterpriseLibrary.Common" version="6.0.1304.0" targetFramework="net451" />
  <package id="EnterpriseLibrary.TransientFaultHandling" version="6.0.1304.0" targetFramework="net451" />
  <package id="EnterpriseLibrary.TransientFaultHandling.Caching" version="6.0.1304.0" targetFramework="net451" />
  <package id="EnterpriseLibrary.TransientFaultHandling.Configuration" version="6.0.1304.0" targetFramework="net451" />
  <package id="EnterpriseLibrary.TransientFaultHandling.Data" version="6.0.1304.1" targetFramework="net451" />
  <package id="EnterpriseLibrary.TransientFaultHandling.ServiceBus" version="6.0.1304.0" targetFramework="net451" />
  <package id="EnterpriseLibrary.TransientFaultHandling.WindowsAzure.Storage" version="6.0.1304.0" targetFramework="net451" />
  <package id="Microsoft.Azure.KeyVault.Core" version="1.0.0" targetFramework="net451" />
  <package id="Microsoft.Data.Edm" version="5.8.2" targetFramework="net452" />
  <package id="Microsoft.Data.OData" version="5.8.2" targetFramework="net452" />
  <package id="Microsoft.Data.Services.Client" version="5.8.2" targetFramework="net452" />
  <package id="Microsoft.Extensions.DependencyInjection" version="2.0.0" targetFramework="net461" />
  <package id="Microsoft.Extensions.DependencyInjection.Abstractions" version="2.0.0" targetFramework="net461" />
  <package id="Microsoft.NETCore.Platforms" version="1.1.0" targetFramework="net452" />
  <package id="NETStandard.Library" version="1.6.1" targetFramework="net452" />
  <package id="Newtonsoft.Json" version="8.0.2" targetFramework="net452" />
  <package id="System.Collections" version="4.3.0" targetFramework="net452" />
  <package id="System.Collections.Concurrent" version="4.3.0" targetFramework="net452" />
  <package id="System.ComponentModel" version="4.3.0" targetFramework="net452" />
  <package id="System.ComponentModel.EventBasedAsync" version="4.0.11" targetFramework="net452" />
  <package id="System.Diagnostics.Debug" version="4.3.0" targetFramework="net452" />
  <package id="System.Diagnostics.Tools" version="4.3.0" targetFramework="net452" />
  <package id="System.Diagnostics.Tracing" version="4.3.0" targetFramework="net452" />
  <package id="System.Dynamic.Runtime" version="4.0.0" targetFramework="net452" />
  <package id="System.Globalization" version="4.3.0" targetFramework="net452" />
  <package id="System.IO" version="4.3.0" targetFramework="net452" />
  <package id="System.IO.Compression" version="4.3.0" targetFramework="net452" />
  <package id="System.Linq" version="4.3.0" targetFramework="net452" />
  <package id="System.Linq.Expressions" version="4.3.0" targetFramework="net452" />
  <package id="System.Linq.Queryable" version="4.0.0" targetFramework="net452" />
  <package id="System.Net.Http" version="4.3.0" targetFramework="net452" />
  <package id="System.Net.Primitives" version="4.3.0" targetFramework="net452" />
  <package id="System.Net.Requests" version="4.0.11" targetFramework="net452" />
  <package id="System.ObjectModel" version="4.3.0" targetFramework="net452" />
  <package id="System.Reflection" version="4.3.0" targetFramework="net452" />
  <package id="System.Reflection.Extensions" version="4.3.0" targetFramework="net452" />
  <package id="System.Reflection.Primitives" version="4.3.0" targetFramework="net452" />
  <package id="System.Resources.ResourceManager" version="4.3.0" targetFramework="net452" />
  <package id="System.Runtime" version="4.3.0" targetFramework="net452" />
  <package id="System.Runtime.Extensions" version="4.3.0" targetFramework="net452" />
  <package id="System.Runtime.InteropServices" version="4.3.0" targetFramework="net452" />
  <package id="System.Runtime.InteropServices.RuntimeInformation" version="4.3.0" targetFramework="net452" />
  <package id="System.Runtime.Numerics" version="4.3.0" targetFramework="net452" />
  <package id="System.Spatial" version="5.8.2" targetFramework="net452" />
  <package id="System.Text.Encoding" version="4.3.0" targetFramework="net452" />
  <package id="System.Text.Encoding.Extensions" version="4.3.0" targetFramework="net452" />
  <package id="System.Text.RegularExpressions" version="4.3.0" targetFramework="net452" />
  <package id="System.Threading" version="4.3.0" targetFramework="net452" />
  <package id="System.Threading.Tasks" version="4.3.0" targetFramework="net452" />
  <package id="System.Threading.Timer" version="4.3.0" targetFramework="net452" />
  <package id="System.Xml.ReaderWriter" version="4.3.0" targetFramework="net452" />
  <package id="System.Xml.XDocument" version="4.3.0" targetFramework="net452" />
  <package id="WindowsAzure.Storage" version="8.1.1" targetFramework="net452" />

更新我的包后

<package id="EnterpriseLibrary.Common" version="6.0.1304.0" targetFramework="net461" />
  <package id="EnterpriseLibrary.TransientFaultHandling" version="6.0.1304.0" targetFramework="net461" />
  <package id="EnterpriseLibrary.TransientFaultHandling.Caching" version="6.0.1304.0" targetFramework="net461" />
  <package id="EnterpriseLibrary.TransientFaultHandling.Configuration" version="6.0.1304.0" targetFramework="net461" />
  <package id="EnterpriseLibrary.TransientFaultHandling.Data" version="6.0.1304.1" targetFramework="net461" />
  <package id="EnterpriseLibrary.TransientFaultHandling.ServiceBus" version="6.0.1304.0" targetFramework="net461" />
  <package id="EnterpriseLibrary.TransientFaultHandling.WindowsAzure.Storage" version="6.0.1304.1" targetFramework="net461" />
  <package id="Microsoft.Azure.KeyVault.Core" version="1.0.0" targetFramework="net461" />
  <package id="Microsoft.Data.Edm" version="5.8.2" targetFramework="net461" />
  <package id="Microsoft.Data.OData" version="5.8.2" targetFramework="net461" />
  <package id="Microsoft.Data.Services.Client" version="5.8.2" targetFramework="net461" />
  <package id="Microsoft.Extensions.DependencyInjection" version="2.0.0" targetFramework="net461" />
  <package id="Microsoft.Extensions.DependencyInjection.Abstractions" version="2.0.0" targetFramework="net461" />
  <package id="Microsoft.NETCore.Platforms" version="1.1.0" targetFramework="net461" />
  <package id="Microsoft.Win32.Primitives" version="4.3.0" targetFramework="net461" />
  <package id="NETStandard.Library" version="1.6.1" targetFramework="net461" />
  <package id="Newtonsoft.Json" version="8.0.2" targetFramework="net461" />
  <package id="System.AppContext" version="4.3.0" targetFramework="net461" />
  <package id="System.Collections" version="4.3.0" targetFramework="net461" />
  <package id="System.Collections.Concurrent" version="4.3.0" targetFramework="net461" />
  <package id="System.ComponentModel" version="4.3.0" targetFramework="net461" />
  <package id="System.ComponentModel.EventBasedAsync" version="4.0.11" targetFramework="net461" />
  <package id="System.Console" version="4.3.0" targetFramework="net461" />
  <package id="System.Diagnostics.Debug" version="4.3.0" targetFramework="net461" />
  <package id="System.Diagnostics.DiagnosticSource" version="4.3.0" targetFramework="net461" />
  <package id="System.Diagnostics.Tools" version="4.3.0" targetFramework="net461" />
  <package id="System.Diagnostics.Tracing" version="4.3.0" targetFramework="net461" />
  <package id="System.Dynamic.Runtime" version="4.0.0" targetFramework="net461" />
  <package id="System.Globalization" version="4.3.0" targetFramework="net461" />
  <package id="System.Globalization.Calendars" version="4.3.0" targetFramework="net461" />
  <package id="System.IO" version="4.3.0" targetFramework="net461" />
  <package id="System.IO.Compression" version="4.3.0" targetFramework="net461" />
  <package id="System.IO.Compression.ZipFile" version="4.3.0" targetFramework="net461" />
  <package id="System.IO.FileSystem" version="4.3.0" targetFramework="net461" />
  <package id="System.IO.FileSystem.Primitives" version="4.3.0" targetFramework="net461" />
  <package id="System.Linq" version="4.3.0" targetFramework="net461" />
  <package id="System.Linq.Expressions" version="4.3.0" targetFramework="net461" />
  <package id="System.Linq.Queryable" version="4.0.0" targetFramework="net461" />
  <package id="System.Net.Http" version="4.3.0" targetFramework="net461" />
  <package id="System.Net.Primitives" version="4.3.0" targetFramework="net461" />
  <package id="System.Net.Requests" version="4.0.11" targetFramework="net461" />
  <package id="System.Net.Sockets" version="4.3.0" targetFramework="net461" />
  <package id="System.ObjectModel" version="4.3.0" targetFramework="net461" />
  <package id="System.Reflection" version="4.3.0" targetFramework="net461" />
  <package id="System.Reflection.Extensions" version="4.3.0" targetFramework="net461" />
  <package id="System.Reflection.Primitives" version="4.3.0" targetFramework="net461" />
  <package id="System.Resources.ResourceManager" version="4.3.0" targetFramework="net461" />
  <package id="System.Runtime" version="4.3.0" targetFramework="net461" />
  <package id="System.Runtime.Extensions" version="4.3.0" targetFramework="net461" />
  <package id="System.Runtime.Handles" version="4.3.0" targetFramework="net461" />
  <package id="System.Runtime.InteropServices" version="4.3.0" targetFramework="net461" />
  <package id="System.Runtime.InteropServices.RuntimeInformation" version="4.3.0" targetFramework="net461" />
  <package id="System.Runtime.Numerics" version="4.3.0" targetFramework="net461" />
  <package id="System.Security.Cryptography.Algorithms" version="4.3.0" targetFramework="net461" />
  <package id="System.Security.Cryptography.Encoding" version="4.3.0" targetFramework="net461" />
  <package id="System.Security.Cryptography.Primitives" version="4.3.0" targetFramework="net461" />
  <package id="System.Security.Cryptography.X509Certificates" version="4.3.0" targetFramework="net461" />
  <package id="System.Spatial" version="5.8.2" targetFramework="net461" />
  <package id="System.Text.Encoding" version="4.3.0" targetFramework="net461" />
  <package id="System.Text.Encoding.Extensions" version="4.3.0" targetFramework="net461" />
  <package id="System.Text.RegularExpressions" version="4.3.0" targetFramework="net461" />
  <package id="System.Threading" version="4.3.0" targetFramework="net461" />
  <package id="System.Threading.Tasks" version="4.3.0" targetFramework="net461" />
  <package id="System.Threading.Timer" version="4.3.0" targetFramework="net461" />
  <package id="System.Xml.ReaderWriter" version="4.3.0" targetFramework="net461" />
  <package id="System.Xml.XDocument" version="4.3.0" targetFramework="net461" />
  <package id="WindowsAzure.Storage" version="8.1.1" targetFramework="net461" />

【问题讨论】：

你能说得更具体点吗？添加了哪些新软件包，这些软件包是同时添加到 packages.config 和 .csproj 文件中还是仅添加到 .csproj 文件中？假设这是一个 C# 项目。
我已经添加了我的包裹。所以你可以看看

标签： visual-studio nuget nuget-package nuget-package-restore

【解决方案1】：

但我不确定为什么添加的包比我已经添加的包多？

这是 NuGet 的默认行为。当我们将 nuget 包安装到项目中时，nuget 也会将其依赖项添加到项目中。

添加更多包的原因是针对不同框架时依赖不同。当您以.net461 为目标时，某些包会为项目引入更多依赖项。因此，添加的包比您已经拥有的包更多。

例如，您可以检查包Microsoft.Extensions.DependencyInjection、System.Net.Http 和System.Runtime.InteropServices 的依赖关系：

显然，当您使用命令Update-Package -reinstall 重新安装针对 net461 框架的包时，这些包将添加一些新的依赖项到项目中。

希望这会有所帮助。

【讨论】：