在清理Windows 10 64计算机时，我安装了Visual Studio 2017 RC（以及所有组件），根本没有项目正在构建。他们都失败了这个错误：
子节点＆＃34; 2＆＃34;过早退出。关机诊断 可以在临时文件目录中的文件中找到信息 名为MSBuild _ * .failure.txt。
当我调查日志文件时，它提到它说：
UNHANDLED EXCEPTIONS FROM PROCESS 7300:
===================== 07/01/2017 19:30:19 System.IO.FileNotFoundException: The system cannot find the file
specified. (Exception from HRESULT: 0x80070002) at
Microsoft.Build.Shared.BuildEnvironmentHelper.get_Instance() at
Microsoft.Build.Evaluation.ToolsetConfigurationReader.ReadApplicationConfiguration()
at
Microsoft.Build.Evaluation.ToolsetConfigurationReader.get_ConfigurationSection()
at
Microsoft.Build.Evaluation.ToolsetConfigurationReader.<get_ToolsVersions>d__8.MoveNext()
at
Microsoft.Build.Evaluation.ToolsetReader.ReadEachToolset(Dictionary`2
toolsets, PropertyDictionary`1 globalProperties, PropertyDictionary`1
initialProperties, Boolean accumulateProperties) at
Microsoft.Build.Evaluation.ToolsetReader.ReadToolsets(Dictionary`2
toolsets, PropertyDictionary`1 globalProperties, PropertyDictionary`1
initialProperties, Boolean accumulateProperties, String&
msBuildOverrideTasksPath, String& defaultOverrideToolsVersion) at
Microsoft.Build.Evaluation.ToolsetReader.ReadAllToolsets(Dictionary`2
toolsets, ToolsetRegistryReader registryReader,
ToolsetConfigurationReader configurationReader, PropertyDictionary`1
environmentProperties, PropertyDictionary`1 globalProperties,
ToolsetDefinitionLocations locations) at
Microsoft.Build.Evaluation.ProjectCollection.InitializeToolsetCollection(ToolsetRegistryReader
registryReader, ToolsetConfigurationReader configReader) at
Microsoft.Build.Evaluation.ProjectCollection..ctor(IDictionary`2
globalProperties, IEnumerable`1 loggers, IEnumerable`1 remoteLoggers,
ToolsetDefinitionLocations toolsetDefinitionLocations, Int32
maxNodeCount, Boolean onlyLogCriticalEvents) at
Microsoft.Build.Evaluation.ProjectCollection.get_GlobalProjectCollection()
at
Microsoft.Build.Execution.OutOfProcNode.HandleNodeConfiguration(NodeConfiguration
configuration) at
Microsoft.Build.Execution.OutOfProcNode.HandlePacket(INodePacket
packet) at Microsoft.Build.Execution.OutOfProcNode.Run(Boolean
enableReuse, Exception& shutdownException) at
Microsoft.Build.CommandLine.MSBuildApp.StartLocalNode(CommandLineSwitches
commandLineSwitches) at
Microsoft.Build.CommandLine.MSBuildApp.ProcessCommandLineSwitches(CommandLineSwitches
switchesFromAutoResponseFile, CommandLineSwitches
switchesNotFromAutoResponseFile, String& projectFile, String[]&
targets, String& toolsVersion, Dictionary`2& globalProperties,
ILogger[]& loggers, LoggerVerbosity& verbosity, List`1&
distributedLoggerRecords, Boolean& needToValidateProject, String&
schemaFile, Int32& cpuCount, Boolean& enableNodeReuse, TextWriter&
preprocessWriter, Boolean& debugger, Boolean& detailedSummary, Boolean
recursing) at Microsoft.Build.CommandLine.MSBuildApp.Execute(String
commandLine) at Microsoft.Build.CommandLine.MSBuildApp.Main()
=================== 07/01/2017 19:30:19 System.IO.FileNotFoundException: The system cannot find the file
specified. (Exception from HRESULT: 0x80070002) at
Microsoft.Build.Shared.BuildEnvironmentHelper.get_Instance() at
Microsoft.Build.Evaluation.ToolsetConfigurationReader.ReadApplicationConfiguration()
at
Microsoft.Build.Evaluation.ToolsetConfigurationReader.get_ConfigurationSection()
at
Microsoft.Build.Evaluation.ToolsetConfigurationReader.<get_ToolsVersions>d__8.MoveNext()
at
Microsoft.Build.Evaluation.ToolsetReader.ReadEachToolset(Dictionary`2
toolsets, PropertyDictionary`1 globalProperties, PropertyDictionary`1
initialProperties, Boolean accumulateProperties) at
Microsoft.Build.Evaluation.ToolsetReader.ReadToolsets(Dictionary`2
toolsets, PropertyDictionary`1 globalProperties, PropertyDictionary`1
initialProperties, Boolean accumulateProperties, String&
msBuildOverrideTasksPath, String& defaultOverrideToolsVersion) at
Microsoft.Build.Evaluation.ToolsetReader.ReadAllToolsets(Dictionary`2
toolsets, ToolsetRegistryReader registryReader,
ToolsetConfigurationReader configurationReader, PropertyDictionary`1
environmentProperties, PropertyDictionary`1 globalProperties,
ToolsetDefinitionLocations locations) at
Microsoft.Build.Evaluation.ProjectCollection.InitializeToolsetCollection(ToolsetRegistryReader
registryReader, ToolsetConfigurationReader configReader) at
Microsoft.Build.Evaluation.ProjectCollection..ctor(IDictionary`2
globalProperties, IEnumerable`1 loggers, IEnumerable`1 remoteLoggers,
ToolsetDefinitionLocations toolsetDefinitionLocations, Int32
maxNodeCount, Boolean onlyLogCriticalEvents) at
Microsoft.Build.Evaluation.ProjectCollection.get_GlobalProjectCollection()
at
Microsoft.Build.Execution.OutOfProcNode.HandleNodeConfiguration(NodeConfiguration
configuration) at
Microsoft.Build.Execution.OutOfProcNode.HandlePacket(INodePacket
packet) at Microsoft.Build.Execution.OutOfProcNode.Run(Boolean
enableReuse, Exception& shutdownException) at
Microsoft.Build.CommandLine.MSBuildApp.StartLocalNode(CommandLineSwitches
commandLineSwitches) at
Microsoft.Build.CommandLine.MSBuildApp.ProcessCommandLineSwitches(CommandLineSwitches
switchesFromAutoResponseFile, CommandLineSwitches
switchesNotFromAutoResponseFile, String& projectFile, String[]&
targets, String& toolsVersion, Dictionary`2& globalProperties,
ILogger[]& loggers, LoggerVerbosity& verbosity, List`1&
distributedLoggerRecords, Boolean& needToValidateProject, String&
schemaFile, Int32& cpuCount, Boolean& enableNodeReuse, TextWriter&
preprocessWriter, Boolean& debugger, Boolean& detailedSummary, Boolean
recursing) at Microsoft.Build.CommandLine.MSBuildApp.Execute(String
commandLine) at Microsoft.Build.CommandLine.MSBuildApp.Main()
===================
我修复了安装并完成了完全卸载/安装，但没有任何区别。
尝试在工具下打开登录 - ＆gt;诊断选项，但它不会显示它在日志文件的错误消息中引用的文件。
这适用于现有项目和新项目。有什么想法吗？
注意：我最初在非默认的非系统驱动器上安装了VS，但是将其删除并重新安装到默认安装。