Visual Studio 2022调试单元测试时Edit and Continue因越界读取不可用

问题重现步骤 #

• 打开项目并启动测试资源管理器；
• 选择任意测试进行调试；
• 工具栏下方出现Read out of bounds错误提示，测试中的断点无法生效。

已尝试的无效操作 #

• 将Visual Studio从17.3.3升级至17.3.6；
• 修复Visual Studio。

堆栈跟踪信息 #

StreamJsonRpc.RemoteInvocationException: Read out of bounds.
at StreamJsonRpc.JsonRpc.d__1431.MoveNext() --- End of stack trace from previous location where exception was thrown ---    at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()    at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)    at Microsoft.CodeAnalysis.EditAndContinue.RemoteEditAndContinueServiceProxy.<>c__DisplayClass5_0.<b__0>d.MoveNext() --- End of stack trace from previous location where exception was thrown ---    at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()    at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)    at Microsoft.CodeAnalysis.Remote.BrokeredServiceConnection1.d__201.MoveNext() RPC server exception: System.BadImageFormatException: Read out of bounds.       at System.Reflection.Throw.OutOfBounds()       at System.Reflection.Metadata.Ecma335.CustomDebugInformationTableReader..ctor(Int32 numberOfRows, Boolean declaredSorted, Int32 hasCustomDebugInformationRefSize, Int32 guidHeapRefSize, Int32 blobHeapRefSize, MemoryBlock containingBlock, Int32 containingBlockOffset)       at System.Reflection.Metadata.MetadataReader.InitializeTableReaders(MemoryBlock metadataTablesMemoryBlock, HeapSizes heapSizes, Int32[] rowCounts, Int32[] externalRowCountsOpt)       at System.Reflection.Metadata.MetadataReader..ctor(Byte* metadata, Int32 length, MetadataReaderOptions options, MetadataStringDecoder utf8Decoder, Object memoryOwner)       at System.Reflection.Metadata.MetadataReaderProvider.GetMetadataReader(MetadataReaderOptions options, MetadataStringDecoder utf8Decoder)       at Microsoft.CodeAnalysis.Debugging.DebugInformationReaderProvider.Portable.CreateEditAndContinueMethodDebugInfoReader()       at Microsoft.CodeAnalysis.EditAndContinue.CommittedSolution.<>c__DisplayClass15_0.<b__0>d.MoveNext()    --- End of stack trace from previous location where exception was thrown ---       at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()       at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)       at Microsoft.CodeAnalysis.EditAndContinue.CommittedSolution.d__15.MoveNext()    --- End of stack trace from previous location where exception was thrown ---       at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()       at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)       at Microsoft.CodeAnalysis.EditAndContinue.EditAndContinueWorkspaceService.d__10.MoveNext()    --- End of stack trace from previous location where exception was thrown ---       at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()       at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)       at Microsoft.CodeAnalysis.EditAndContinue.RemoteEditAndContinueService.<>c__DisplayClass6_0.<b__0>d.MoveNext()    --- End of stack trace from previous location where exception was thrown ---       at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()       at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)       at Microsoft.CodeAnalysis.Remote.RemoteWorkspace.<>c__DisplayClass10_01.<g__TryFastGetSolutionAndRunAsync|0>d.MoveNext()
— End of stack trace from previous location where exception was thrown —
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Microsoft.CodeAnalysis.Remote.RemoteWorkspace.d__101.MoveNext()    --- End of stack trace from previous location where exception was thrown ---       at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()       at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)       at Microsoft.CodeAnalysis.Remote.BrokeredServiceBase.d__111.MoveNext()
— End of stack trace from previous location where exception was thrown —
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Microsoft.CodeAnalysis.Remote.BrokeredServiceBase.d__14`1.MoveNext()

可能的解决方法 #

1. 清理项目输出文件 #

• 手动删除项目的bin和obj文件夹；
• 重新生成整个解决方案，确保生成过程无错误。

2. 禁用"编辑并继续"功能 #

从堆栈跟踪看错误与EditAndContinue模块直接相关，可尝试关闭该功能：

• 打开Visual Studio选项：工具 -> 选项 -> 调试 -> 常规；
• 取消勾选启用编辑并继续选项；
• 重启Visual Studio后重新调试测试。

3. 检查项目目标框架兼容性 #

确保测试项目的目标框架与主项目一致，且兼容当前Visual Studio版本；若使用.NET Core/.NET 5+，尝试切换到稳定版本的框架。

4. 重置Visual Studio设置 #

• 打开命令提示符，运行命令：devenv /ResetSettings；
• 重启Visual Studio，重新配置调试相关设置。

5. 检查测试项目的引用 #

确认测试项目引用的程序集无损坏，可尝试移除并重新添加引用；若使用NuGet包，更新所有NuGet包到最新稳定版，或尝试回退到之前可正常调试的版本。

内容的提问来源于stack exchange，提问作者fatherOfWine