问题描述
我有一个带有实体框架 DbContext 的 dotnet core v3.1 项目。 当我尝试运行时：
dotnet ef migrations add someMigrationName
将抛出此异常：
System.ComponentModel.Win32Exception (2): No such file or directory
at System.Diagnostics.Process.ForkAndExecProcess(String filename,String[] argv,String[] envp,String cwd,Boolean redirectStdin,Boolean redirectStdout,Boolean redirectStderr,Boolean setCredentials,UInt32 userId,UInt32 groupId,UInt32[] groups,Int32& stdinFd,Int32& stdoutFd,Int32& stderrFd,Boolean usesTerminal,Boolean throwOnNoExec)
at System.Diagnostics.Process.StartCore(processstartinfo startInfo)
at System.Diagnostics.Process.Start()
at System.Diagnostics.Process.Start(processstartinfo startInfo)
at Microsoft.EntityFrameworkCore.Tools.Exe.Run(String executable,IReadOnlyList`1 args,String workingDirectory,Boolean interceptOutput)
at Microsoft.EntityFrameworkCore.Tools.Project.FromFile(String file,String buildExtensionsDir,String framework,String configuration,String runtime)
at Microsoft.EntityFrameworkCore.Tools.RootCommand.Execute(String[] _)
at Microsoft.EntityFrameworkCore.Tools.Commands.CommandBase.<>c__displayClass0_0.<Configure>b__0(String[] args)
at Microsoft.DotNet.Cli.CommandLine.CommandLineApplication.Execute(String[] args)
at Microsoft.EntityFrameworkCore.Tools.Program.Main(String[] args)
No such file or directory
我的开发环境是 Linux 基本操作系统 (Ubuntu 18.04.4 LTS) 和 Rider IDE。
这可能无关紧要，但是当我尝试调试 xunit 测试时，它返回此警告并且无法开始执行。
所有这些命令都能正常工作并显示所有选项：
- dotnet
- dotnet ef
- dotnet ef 迁移
但是当我使用这些选项时引发异常：
- dotnet ef 迁移添加
- dotnet ef 迁移列表
此外，我使用详细选项运行我的命令，这是输出：
Using project '/media/navid/9bf0167c-d789-4e06-9e23-4023ec551745/Stuff/Work/SabaCell/venus/Venus.CustomerProfileManagement/Venus.CustomerProfileManagement.csproj'.
Using startup project '/media/navid/9bf0167c-d789-4e06-9e23-4023ec551745/Stuff/Work/SabaCell/venus/Venus.CustomerProfileManagement/Venus.CustomerProfileManagement.csproj'.
Writing '/media/navid/9bf0167c-d789-4e06-9e23-4023ec551745/Stuff/Work/SabaCell/venus/Venus.CustomerProfileManagement/obj/Venus.CustomerProfileManagement.csproj.EntityFrameworkCore.targets'...
dotnet msbuild /target:GetEFProjectMetadata /property:EFProjectMetadataFile=/tmp/tmpuud0Xf.tmp /verbosity:quiet /nologo /media/navid/9bf0167c-d789-4e06-9e23-4023ec551745/Stuff/Work/SabaCell/venus/Venus.CustomerProfileManagement/Venus.CustomerProfileManagement.csproj
System.ComponentModel.Win32Exception (2): No such file or directory
at System.Diagnostics.Process.ForkAndExecProcess(String filename,String runtime)
at Microsoft.EntityFrameworkCore.Tools.RootCommand.Execute(String[] _)
at Microsoft.EntityFrameworkCore.Tools.Commands.CommandBase.<>c__displayClass0_0.<Configure>b__0(String[] args)
at Microsoft.DotNet.Cli.CommandLine.CommandLineApplication.Execute(String[] args)
at Microsoft.EntityFrameworkCore.Tools.Program.Main(String[] args)
No such file or directory
这是在我的环境中运行 dotnet --info 的结果：
.NET Core SDK (reflecting any global.json):
Version: 3.1.405
Commit: 3fae16e62e
Runtime Environment:
OS Name: elementary
OS Version: 5.1.7
OS Platform: Linux
RID: linux-x64
Base Path: /usr/share/dotnet/sdk/3.1.405/
Host (useful for support):
Version: 3.1.11
Commit: f5eceb8105
.NET Core SDKs installed:
3.1.405 [/usr/share/dotnet/sdk]
.NET Core runtimes installed:
Microsoft.AspNetCore.App 3.1.11 [/usr/share/dotnet/shared/Microsoft.AspNetCore.App]
Microsoft.NETCore.App 3.1.11 [/usr/share/dotnet/shared/Microsoft.NETCore.App]
To install additional .NET Core runtimes or SDKs:
https://aka.ms/dotnet-download
解决方法
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