为什么 nuget 要安装一堆系统命名空间引用？

Question

我正在尝试从 nuget 安装一个库。我原本期望可能有 3 或 4 个不同的依赖项，但它安装了全部System依赖项？

这是日志：

Attempting to gather dependency information for package 'TwitchLib.Client.2.1.4' with respect to project 'Twitch Logs', targeting '.NETFramework,Version=v4.6'
Attempting to resolve dependencies for package 'TwitchLib.Client.2.1.4' with DependencyBehavior 'Lowest'
Resolving actions to install package 'TwitchLib.Client.2.1.4'
Resolved actions to install package 'TwitchLib.Client.2.1.4'
Adding package 'Serilog.2.3.0' to folder '\\jgdc01\Users\RyanPearce\Documents\Visual Studio 2015\Projects\Twitch Logs\packages'
Added package 'Serilog.2.3.0' to folder '\\jgdc01\Users\RyanPearce\Documents\Visual Studio 2015\Projects\Twitch Logs\packages'
Added package 'Serilog.2.3.0' to 'packages.config'
Successfully installed 'Serilog 2.3.0' to Twitch Logs
Adding package 'System.Collections.4.0.11' to folder '\\jgdc01\Users\RyanPearce\Documents\Visual Studio 2015\Projects\Twitch Logs\packages'
Added package 'System.Collections.4.0.11' to folder '\\jgdc01\Users\RyanPearce\Documents\Visual Studio 2015\Projects\Twitch Logs\packages'
Added package 'System.Collections.4.0.11' to 'packages.config'
Successfully installed 'System.Collections 4.0.11' to Twitch Logs
Adding package 'System.Collections.Concurrent.4.0.12' to folder '\\jgdc01\Users\RyanPearce\Documents\Visual Studio 2015\Projects\Twitch Logs\packages'
Added package 'System.Collections.Concurrent.4.0.12' to folder '\\jgdc01\Users\RyanPearce\Documents\Visual Studio 2015\Projects\Twitch Logs\packages'
Added package 'System.Collections.Concurrent.4.0.12' to 'packages.config'
Successfully installed 'System.Collections.Concurrent 4.0.12' to Twitch Logs
Adding package 'System.Collections.Specialized.4.3.0' to folder '\\jgdc01\Users\RyanPearce\Documents\Visual Studio 2015\Projects\Twitch Logs\packages'
Added package 'System.Collections.Specialized.4.3.0' to folder '\\jgdc01\Users\RyanPearce\Documents\Visual Studio 2015\Projects\Twitch Logs\packages'
Added package 'System.Collections.Specialized.4.3.0' to 'packages.config'
Successfully installed 'System.Collections.Specialized 4.3.0' to Twitch Logs
Adding package 'System.Diagnostics.Debug.4.0.11' to folder '\\jgdc01\Users\RyanPearce\Documents\Visual Studio 2015\Projects\Twitch Logs\packages'
Added package 'System.Diagnostics.Debug.4.0.11' to folder '\\jgdc01\Users\RyanPearce\Documents\Visual Studio 2015\Projects\Twitch Logs\packages'
Added package 'System.Diagnostics.Debug.4.0.11' to 'packages.config'
Successfully installed 'System.Diagnostics.Debug 4.0.11' to Twitch Logs
Adding package 'System.Globalization.4.0.11' to folder '\\jgdc01\Users\RyanPearce\Documents\Visual Studio 2015\Projects\Twitch Logs\packages'
Added package 'System.Globalization.4.0.11' to folder '\\jgdc01\Users\RyanPearce\Documents\Visual Studio 2015\Projects\Twitch Logs\packages'
Added package 'System.Globalization.4.0.11' to 'packages.config'
Successfully installed 'System.Globalization 4.0.11' to Twitch Logs
Adding package 'System.Linq.4.3.0' to folder '\\jgdc01\Users\RyanPearce\Documents\Visual Studio 2015\Projects\Twitch Logs\packages'
Added package 'System.Linq.4.3.0' to folder '\\jgdc01\Users\RyanPearce\Documents\Visual Studio 2015\Projects\Twitch Logs\packages'
Added package 'System.Linq.4.3.0' to 'packages.config'
Successfully installed 'System.Linq 4.3.0' to Twitch Logs
Adding package 'System.Net.NameResolution.4.3.0' to folder '\\jgdc01\Users\RyanPearce\Documents\Visual Studio 2015\Projects\Twitch Logs\packages'
Added package 'System.Net.NameResolution.4.3.0' to folder '\\jgdc01\Users\RyanPearce\Documents\Visual Studio 2015\Projects\Twitch Logs\packages'
Added package 'System.Net.NameResolution.4.3.0' to 'packages.config'
Successfully installed 'System.Net.NameResolution 4.3.0' to Twitch Logs
Adding package 'System.Net.Sockets.4.3.0' to folder '\\jgdc01\Users\RyanPearce\Documents\Visual Studio 2015\Projects\Twitch Logs\packages'
Added package 'System.Net.Sockets.4.3.0' to folder '\\jgdc01\Users\RyanPearce\Documents\Visual Studio 2015\Projects\Twitch Logs\packages'
Added package 'System.Net.Sockets.4.3.0' to 'packages.config'
Successfully installed 'System.Net.Sockets 4.3.0' to Twitch Logs
Adding package 'System.Reflection.4.1.0' to folder '\\jgdc01\Users\RyanPearce\Documents\Visual Studio 2015\Projects\Twitch Logs\packages'
Added package 'System.Reflection.4.1.0' to folder '\\jgdc01\Users\RyanPearce\Documents\Visual Studio 2015\Projects\Twitch Logs\packages'
Added package 'System.Reflection.4.1.0' to 'packages.config'
Successfully installed 'System.Reflection 4.1.0' to Twitch Logs
Adding package 'System.Resources.ResourceManager.4.0.1' to folder '\\jgdc01\Users\RyanPearce\Documents\Visual Studio 2015\Projects\Twitch Logs\packages'
Added package 'System.Resources.ResourceManager.4.0.1' to folder '\\jgdc01\Users\RyanPearce\Documents\Visual Studio 2015\Projects\Twitch Logs\packages'
Added package 'System.Resources.ResourceManager.4.0.1' to 'packages.config'
Successfully installed 'System.Resources.ResourceManager 4.0.1' to Twitch Logs
Adding package 'System.Runtime.Extensions.4.3.0' to folder '\\jgdc01\Users\RyanPearce\Documents\Visual Studio 2015\Projects\Twitch Logs\packages'
Added package 'System.Runtime.Extensions.4.3.0' to folder '\\jgdc01\Users\RyanPearce\Documents\Visual Studio 2015\Projects\Twitch Logs\packages'
Added package 'System.Runtime.Extensions.4.3.0' to 'packages.config'
Successfully installed 'System.Runtime.Extensions 4.3.0' to Twitch Logs
Adding package 'System.Runtime.InteropServices.4.3.0' to folder '\\jgdc01\Users\RyanPearce\Documents\Visual Studio 2015\Projects\Twitch Logs\packages'
Added package 'System.Runtime.InteropServices.4.3.0' to folder '\\jgdc01\Users\RyanPearce\Documents\Visual Studio 2015\Projects\Twitch Logs\packages'
Added package 'System.Runtime.InteropServices.4.3.0' to 'packages.config'
Successfully installed 'System.Runtime.InteropServices 4.3.0' to Twitch Logs
Adding package 'Microsoft.Extensions.Logging.Abstractions.1.0.0' to folder '\\jgdc01\Users\RyanPearce\Documents\Visual Studio 2015\Projects\Twitch Logs\packages'
Added package 'Microsoft.Extensions.Logging.Abstractions.1.0.0' to folder '\\jgdc01\Users\RyanPearce\Documents\Visual Studio 2015\Projects\Twitch Logs\packages'
Added package 'Microsoft.Extensions.Logging.Abstractions.1.0.0' to 'packages.config'
Successfully installed 'Microsoft.Extensions.Logging.Abstractions 1.0.0' to Twitch Logs
Adding package 'Serilog.Extensions.Logging.2.0.2' to folder '\\jgdc01\Users\RyanPearce\Documents\Visual Studio 2015\Projects\Twitch Logs\packages'
Added package 'Serilog.Extensions.Logging.2.0.2' to folder '\\jgdc01\Users\RyanPearce\Documents\Visual Studio 2015\Projects\Twitch Logs\packages'
Added package 'Serilog.Extensions.Logging.2.0.2' to 'packages.config'
Successfully installed 'Serilog.Extensions.Logging 2.0.2' to Twitch Logs
Adding package 'System.Security.Cryptography.Encoding.4.3.0' to folder '\\jgdc01\Users\RyanPearce\Documents\Visual Studio 2015\Projects\Twitch Logs\packages'
Added package 'System.Security.Cryptography.Encoding.4.3.0' to folder '\\jgdc01\Users\RyanPearce\Documents\Visual Studio 2015\Projects\Twitch Logs\packages'
Added package 'System.Security.Cryptography.Encoding.4.3.0' to 'packages.config'
Successfully installed 'System.Security.Cryptography.Encoding 4.3.0' to Twitch Logs
Adding package 'System.Security.Cryptography.Primitives.4.3.0' to folder '\\jgdc01\Users\RyanPearce\Documents\Visual Studio 2015\Projects\Twitch Logs\packages'
Added package 'System.Security.Cryptography.Primitives.4.3.0' to folder '\\jgdc01\Users\RyanPearce\Documents\Visual Studio 2015\Projects\Twitch Logs\packages'
Added package 'System.Security.Cryptography.Primitives.4.3.0' to 'packages.config'
Successfully installed 'System.Security.Cryptography.Primitives 4.3.0' to Twitch Logs
Adding package 'System.Security.Cryptography.Algorithms.4.3.0' to folder '\\jgdc01\Users\RyanPearce\Documents\Visual Studio 2015\Projects\Twitch Logs\packages'
Added package 'System.Security.Cryptography.Algorithms.4.3.0' to folder '\\jgdc01\Users\RyanPearce\Documents\Visual Studio 2015\Projects\Twitch Logs\packages'
Added package 'System.Security.Cryptography.Algorithms.4.3.0' to 'packages.config'
Successfully installed 'System.Security.Cryptography.Algorithms 4.3.0' to Twitch Logs
Adding package 'System.Security.Cryptography.X509Certificates.4.3.0' to folder '\\jgdc01\Users\RyanPearce\Documents\Visual Studio 2015\Projects\Twitch Logs\packages'
Added package 'System.Security.Cryptography.X509Certificates.4.3.0' to folder '\\jgdc01\Users\RyanPearce\Documents\Visual Studio 2015\Projects\Twitch Logs\packages'
Added package 'System.Security.Cryptography.X509Certificates.4.3.0' to 'packages.config'
Successfully installed 'System.Security.Cryptography.X509Certificates 4.3.0' to Twitch Logs
Adding package 'System.Net.Security.4.3.0' to folder '\\jgdc01\Users\RyanPearce\Documents\Visual Studio 2015\Projects\Twitch Logs\packages'
Added package 'System.Net.Security.4.3.0' to folder '\\jgdc01\Users\RyanPearce\Documents\Visual Studio 2015\Projects\Twitch Logs\packages'
Added package 'System.Net.Security.4.3.0' to 'packages.config'
Successfully installed 'System.Net.Security 4.3.0' to Twitch Logs
Adding package 'SuperSocket.ClientEngine.Core.0.10.0' to folder '\\jgdc01\Users\RyanPearce\Documents\Visual Studio 2015\Projects\Twitch Logs\packages'
Added package 'SuperSocket.ClientEngine.Core.0.10.0' to folder '\\jgdc01\Users\RyanPearce\Documents\Visual Studio 2015\Projects\Twitch Logs\packages'
Added package 'SuperSocket.ClientEngine.Core.0.10.0' to 'packages.config'
Successfully installed 'SuperSocket.ClientEngine.Core 0.10.0' to Twitch Logs
Adding package 'System.Text.RegularExpressions.4.3.0' to folder '\\jgdc01\Users\RyanPearce\Documents\Visual Studio 2015\Projects\Twitch Logs\packages'
Added package 'System.Text.RegularExpressions.4.3.0' to folder '\\jgdc01\Users\RyanPearce\Documents\Visual Studio 2015\Projects\Twitch Logs\packages'
Added package 'System.Text.RegularExpressions.4.3.0' to 'packages.config'
Successfully installed 'System.Text.RegularExpressions 4.3.0' to Twitch Logs
Adding package 'System.Threading.4.3.0' to folder '\\jgdc01\Users\RyanPearce\Documents\Visual Studio 2015\Projects\Twitch Logs\packages'
Added package 'System.Threading.4.3.0' to folder '\\jgdc01\Users\RyanPearce\Documents\Visual Studio 2015\Projects\Twitch Logs\packages'
Added package 'System.Threading.4.3.0' to 'packages.config'
Successfully installed 'System.Threading 4.3.0' to Twitch Logs
Adding package 'System.Threading.Timer.4.3.0' to folder '\\jgdc01\Users\RyanPearce\Documents\Visual Studio 2015\Projects\Twitch Logs\packages'
Added package 'System.Threading.Timer.4.3.0' to folder '\\jgdc01\Users\RyanPearce\Documents\Visual Studio 2015\Projects\Twitch Logs\packages'
Added package 'System.Threading.Timer.4.3.0' to 'packages.config'
Successfully installed 'System.Threading.Timer 4.3.0' to Twitch Logs
Adding package 'TwitchLib.Client.Enums.1.0.0' to folder '\\jgdc01\Users\RyanPearce\Documents\Visual Studio 2015\Projects\Twitch Logs\packages'
Added package 'TwitchLib.Client.Enums.1.0.0' to folder '\\jgdc01\Users\RyanPearce\Documents\Visual Studio 2015\Projects\Twitch Logs\packages'
Added package 'TwitchLib.Client.Enums.1.0.0' to 'packages.config'
Successfully installed 'TwitchLib.Client.Enums 1.0.0' to Twitch Logs
Adding package 'TwitchLib.Client.Models.1.0.0' to folder '\\jgdc01\Users\RyanPearce\Documents\Visual Studio 2015\Projects\Twitch Logs\packages'
Added package 'TwitchLib.Client.Models.1.0.0' to folder '\\jgdc01\Users\RyanPearce\Documents\Visual Studio 2015\Projects\Twitch Logs\packages'
Added package 'TwitchLib.Client.Models.1.0.0' to 'packages.config'
Successfully installed 'TwitchLib.Client.Models 1.0.0' to Twitch Logs
Adding package 'WebSocket4Net.0.15.2' to folder '\\jgdc01\Users\RyanPearce\Documents\Visual Studio 2015\Projects\Twitch Logs\packages'
Added package 'WebSocket4Net.0.15.2' to folder '\\jgdc01\Users\RyanPearce\Documents\Visual Studio 2015\Projects\Twitch Logs\packages'
Added package 'WebSocket4Net.0.15.2' to 'packages.config'
Successfully installed 'WebSocket4Net 0.15.2' to Twitch Logs
Adding package 'TwitchLib.Client.2.1.4' to folder '\\jgdc01\Users\RyanPearce\Documents\Visual Studio 2015\Projects\Twitch Logs\packages'
Added package 'TwitchLib.Client.2.1.4' to folder '\\jgdc01\Users\RyanPearce\Documents\Visual Studio 2015\Projects\Twitch Logs\packages'
Added package 'TwitchLib.Client.2.1.4' to 'packages.config'
Successfully installed 'TwitchLib.Client 2.1.4' to Twitch Logs
========== Finished ==========

这最终使我的packages文件夹超过 100MB，充满了不需要的库。

以前从未经历过这种情况。

有任何想法吗？

Answer 1

为什么 nuget 要安装一堆系统命名空间引用？

恐怕这可能是关于 package 和 的依赖关系TwitchLib.Client的WebSocket4Net问题SuperSocket.ClientEngine.Core。

查看错误日志后，可以发现以下信息：

尝试收集包“TwitchLib.Client.2.1.4”相对于项目“Twitch Logs”的依赖信息，目标为“ .NETFramework,Version=v4.6 ”

这意味着目标框架.NET 4.6不是.NET Standard.

为了重现这个问题，我创建了一个项目目标.net 4.6，然后安装了 nuget 包WebSocket4Net，但是WebSocket4Net .NETStandard 1.3，确认窗口显示它在安装部分列出了依赖项，这些依赖项似乎是从依赖项列表中提取的：

在NuGet安装错误的依赖项之前我已经报告过类似的问题，您可以尝试Microsoft.Data.Services.Client 5.8.2使用.net 4.5.2安装到C#项目。此问题已在版本 5.8.3 中修复。

因此，为了解决这个问题，我们需要联系这个包的作者来更新这个包。包也有同样的问题SuperSocket.ClientEngine.Core。

注意：如果您不想将这些系统依赖项添加到您的项目中，您可以从项目中删除它们。

希望这可以帮助。