引用的项目依赖项DLL不被复制 [英] Referenced project dependencies DLL are not being copied

问题描述

我的项目解决方案当前有三个项目：

My project solution is currently having three projects:

1. MyProject ，这是我的主要启动项目（使用 .NET Framework 4.7 ）-WPF，UI特定，


2. MyProject.Core -类库（ .NET Standard 2.0 ）-保存模型以及所有幕后数据


3. MyProject.Relational -类库（ .NET Standard 2.0 ）-负责处理和保存数据库的特定信息

1. MyProject, which is my main startup project (using .NET Framework 4.7) - WPF, UI specfic,
2. MyProject.Core - class library (.NET Standard 2.0) - holding the models, and all of the 'behind the scenes' data
3. MyProject.Relational - class library (.NET Standard 2.0) - responsible for processing and saving the database specific informations

项目 1 （主要）已设置对项目 2 和<$的引用c $ c> 3 。

Project 1 (main) has set a reference to project 2 and 3.

对于项目 3 我已经安装了< Microsoft.EntityFrameworkCore.Sqlite（2.0.3）的code> NuGet 依赖项。

For the project 3 I have installed a NuGet dependency of Microsoft.EntityFrameworkCore.Sqlite (2.0.3).

现在，当我最终要使用项目 3 并调用它的方法时，将引发以下异常：

Now, when I finally want to make use of project 3 and call it's method, the following exception is being thrown:

System.IO.FileNotFoundException: 'Could not load file or assembly 'Microsoft.EntityFrameworkCore, Version=2.0.3.0, Culture=neutral, PublicKeyToken=adb9793829ddae60' or one of its dependencies. The system cannot find the file specified.

这当然是丢失的DLL文件-没有实体框架DLL被复制到应用程序 Debug 目录。

This, of course is a missing DLL file - no entity framework DLL's are being copied to the app Debug directory.

为什么？这是预期的行为吗？我是否还必须为项目 1 安装 Microsoft.EntityFrameworkCore.Sqlite 的依赖项？对于我而言，毫无意义，因为它引用了没有使用它的项目依赖项。

Why is that? Is this intended behaviour? Do I have to install the dependency of Microsoft.EntityFrameworkCore.Sqlite for project 1 as well? Pretty pointless to me, referencing the same dependency to project that is making no use of it.

我尝试过什么：

• 清洁项目，删除bin / obj目录，


• 设置项目引用属性，将 copy local 设置为 True ，


• 此问题中给出的解决方案：引用的DLL无法复制到引用项目中

• Cleaning up the project, removing bin/obj directories,
• Set project reference properties setting copy local to True,
• Solutions given in this question: Referenced DLL not being copied to referencing project

使用Visual Studio 2017。

Using Visual Studio 2017.

推荐答案

通过在我的 .csproj 文件中添加以下行来解决此问题：

Solved this by adding the following line into my .csproj file:

<RestoreProjectStyle>PackageReference</RestoreProjectStyle>

专门用于 PropertyGroup 组。

不知道为什么会产生这种差异，如果有人可以解释并发表评论，那将是很棒的。我将添加到此答案中的所有其他信息。

Not sure why it makes such difference, if anyone could explain and post in the comment it would be great. Any additional informations I will add to this answer.

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