Entity framework 无法运行'；dotnet ef'；升级到.NET Core 1.0项目文件后在EF6上

将所有project.json文件升级为.NET core的新格式后，我无法为Entity Framework 6迁移运行“dotnet ef”。有人能看到下面的project.json有什么问题吗

在我的project.json看起来像这样之前：

{
   "frameworks": {
     "dnx46": {
       "dependencies": {
       }
     }
   },
   "dependencies": {
     "EntityFramework": "6.1.3",
     "EntityFramework.DynamicFilters": "1.4.8-*",
     "Migrator.EF6": "1.1.0",
     ....
   },
   "commands": {
     "ef": "Migrator.EF6"
   }
 }

    {
      ...
      "frameworks": {
        "net46": {
          "dependencies": {
          }
        }
      },
      "dependencies": {
        "EntityFramework": "6.1.3",
        "Microsoft.EntityFrameworkCore.SqlServer.Design": "1.0.0",
        "EntityFramework.DynamicFilters": "1.4.8-*",
        "Migrator.EF6": "1.2.0",
        "Migrator.EF6.Tools": {
          "version": "1.0.3",
          "target": "package",
          "type": "build"
        },
        ...
      },
      "tools": {
        "Migrator.EF6.Tools": {
          "version": "1.0.3",
          "imports": "portable-net45+win8+dnxcore50"
        }
      }
    }

public class Program
{

    public static void Main(string[] args)
    {

    }
}

现在看起来是这样的：

{
   "frameworks": {
     "dnx46": {
       "dependencies": {
       }
     }
   },
   "dependencies": {
     "EntityFramework": "6.1.3",
     "EntityFramework.DynamicFilters": "1.4.8-*",
     "Migrator.EF6": "1.1.0",
     ....
   },
   "commands": {
     "ef": "Migrator.EF6"
   }
 }

    {
      ...
      "frameworks": {
        "net46": {
          "dependencies": {
          }
        }
      },
      "dependencies": {
        "EntityFramework": "6.1.3",
        "Microsoft.EntityFrameworkCore.SqlServer.Design": "1.0.0",
        "EntityFramework.DynamicFilters": "1.4.8-*",
        "Migrator.EF6": "1.2.0",
        "Migrator.EF6.Tools": {
          "version": "1.0.3",
          "target": "package",
          "type": "build"
        },
        ...
      },
      "tools": {
        "Migrator.EF6.Tools": {
          "version": "1.0.3",
          "imports": "portable-net45+win8+dnxcore50"
        }
      }
    }

public class Program
{

    public static void Main(string[] args)
    {

    }
}

这是我当前运行“dotnet ef”时收到的错误消息：

未处理的异常： Microsoft.DotNet.Cli.Utils.CommandUnknownexException:无可执行文件 找到匹配的命令“dotnet ef”

---

您必须将其添加到

project.json

文件中

"buildOptions": {
  "emitEntryPoint": true
}

此外，如果没有主类，请添加一个空的主类，如下所示：

{
   "frameworks": {
     "dnx46": {
       "dependencies": {
       }
     }
   },
   "dependencies": {
     "EntityFramework": "6.1.3",
     "EntityFramework.DynamicFilters": "1.4.8-*",
     "Migrator.EF6": "1.1.0",
     ....
   },
   "commands": {
     "ef": "Migrator.EF6"
   }
 }

    {
      ...
      "frameworks": {
        "net46": {
          "dependencies": {
          }
        }
      },
      "dependencies": {
        "EntityFramework": "6.1.3",
        "Microsoft.EntityFrameworkCore.SqlServer.Design": "1.0.0",
        "EntityFramework.DynamicFilters": "1.4.8-*",
        "Migrator.EF6": "1.2.0",
        "Migrator.EF6.Tools": {
          "version": "1.0.3",
          "target": "package",
          "type": "build"
        },
        ...
      },
      "tools": {
        "Migrator.EF6.Tools": {
          "version": "1.0.3",
          "imports": "portable-net45+win8+dnxcore50"
        }
      }
    }

public class Program
{

    public static void Main(string[] args)
    {

    }
}

---

好建议！加上这个后，它抱怨说没有主程序。因此，在添加一个空的主类之后，它就工作了。非常感谢。请将您的问题作为一个新问题@ZainAlabdinTawfiq提出，这样您将获得更好的反馈。对不起，请忽略，我将删除