Question

我在 MacOS-Terminal 中使用以下命令；

dotnet ef migrations add Student --project

并得到异常“索引超出数组范围。”

User-MacBook-Pro WebAPITutorial % dotnet ef migrations add Student --project
System.IndexOutOfRangeException: Index was outside the bounds of the array.
   at Microsoft.DotNet.Cli.CommandLine.CommandLineApplication.ParseOption(Boolean isLongOption, CommandLineApplication command, String[] args, Int32& index, CommandOption& option)
   at Microsoft.DotNet.Cli.CommandLine.CommandLineApplication.Execute(String[] args)
   at Microsoft.EntityFrameworkCore.Tools.Program.Main(String[] args)
Index was outside the bounds of the array.

请帮帮我。

Answer 1

您忘记指定项目名称（如果要将您的迁移存储在与包含您的 DbContext 的项目不同的项目中）：

dotnet ef migrations add Student --project YourProjectName

或者如果你在项目目录里面，就不需要指定项目名称：

dotnet ef migrations add Student

dotnet ef 迁移添加抛出异常

1 个答案: