EF核心错误 - 没有找到项目。更改当前工作目录或使用--project选项 [英] EF Core Error - No project was found. Change the current working directory or use the --project option

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问题描述

我正在使用 Visual Studio 2015 和dotnet核心,并尝试使用Sqlite 和本文档/教程开发一个 EF Core Code First项目,该文档/教程也使用Sqlite =


没有找到项目。更改当前工作目录或使用--project选项。


我甚至尝试使用 - 项目选项如此。

 > dotnet --projectC:\Shiva\EF\EFCFSqlite.Data.xprojef migrations添加InitialMigration 

但是会出现以下错误。

 未知选项:--project 
.NET命令行工具(1.0.0-preview2-003131)
用法:dotnet [host-options] [command] [arguments] [common-options]

我注意到文档使用 .csproj 文件,而我的项目显示一个 xproj 文件。此外,文档还提到了一些关于不使用 project.json 的内容:(



这是我的 project.json 文件。

  {
version:1.0.0- *

依赖关系:{
Microsoft.EntityFrameworkCore.Sqlite:1.1.1,
Microsoft.EntityFrameworkCore.Sqlite.Design:1.1 .1,
NETStandard.Library:1.6.1
},
工具:{
Microsoft.EntityFrameworkCore.Tools.DotNet:1.0 .0
},
框架:{
netstandard1.6:{
imports:dnxcore50
}
}

发生了什么变化?我们别无选择,只能安装Visual Studio 2017 从头开始是 project.json ,所有这些其他的东西不再荣幸吗?



似乎如果是这样,对我来说是一个巨大的变化:(


解决方案

而不是:

 t ools:{
Microsoft.EntityFrameworkCore.Tools.DotNet:1.0.0
},

尝试:

 工具:{
Microsoft.EntityFrameworkCore.Tools。 DotNet:{
version:1.0.0-preview3-final
}},


I am using Visual Studio 2015 and dotnet core and trying to develop an EF Core Code First project using Sqlite and this documentation / tutorial, which also uses Sqlite => NET Core - New Database

When I try to add an initial migration from the command line ( I am CD-ed into the folder that my data model project is located in) by issuing the following command

dotnet ef migrations add InitialMigration

...I get the following Error.

No project was found. Change the current working directory or use the --project option.

I even tried using the --project option like so.

> dotnet --project "C:\Shiva\EF\EFCFSqlite.Data.xproj"  ef migrations add InitialMigration

but that gives the following error.

Unknown option: --project
.NET Command Line Tools (1.0.0-preview2-003131)
Usage: dotnet [host-options] [command] [arguments] [common-options]

I noticed that the documentation is using .csproj file whereas my Project is showing a xproj file. Also the docs mention something about not using project.json anymore :(

Here's my project.json file.

{
  "version": "1.0.0-*",

  "dependencies": {
    "Microsoft.EntityFrameworkCore.Sqlite": "1.1.1",
    "Microsoft.EntityFrameworkCore.Sqlite.Design": "1.1.1",
    "NETStandard.Library": "1.6.1"
  },
  "tools": {
    "Microsoft.EntityFrameworkCore.Tools.DotNet":"1.0.0"
  },
  "frameworks": {
    "netstandard1.6": {
      "imports": "dnxcore50"
    }
  }

What has changed? Do we have no choice but to Install Visual Studio 2017 and start from scratch?? Is project.json and all this other stuff no longer honored?

Seems like a massive change to me if that's the case :(

解决方案

Instead of:

"tools": {
    "Microsoft.EntityFrameworkCore.Tools.DotNet":"1.0.0"
  },

try:

"tools": {
      "Microsoft.EntityFrameworkCore.Tools.DotNet": {
      "version": "1.0.0-preview3-final"
  }},

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