Unity2018 Open C# Project Error

錯誤日誌

升級到Unity2018以後，使用 Open C# Project 打開VS工程，出現報錯，沒法啓動VS。

錯誤日誌以下：

ArgumentException: Value does not fall within the expected range.
SyntaxTree.VisualStudio.Unity.Bridge.CompilationUnit.LanguageOf (SyntaxTree.VisualStudio.Unity.Bridge.CompilationUnit unit)
SyntaxTree.VisualStudio.Unity.Bridge.CompilationUnit.CompilationUnits (System.String method)
SyntaxTree.VisualStudio.Unity.Bridge.CompilationUnit.CompilationUnits ()
SyntaxTree.VisualStudio.Unity.Bridge.ProjectSystem.UnitySolutionBuilder..ctor ()
SyntaxTree.VisualStudio.Unity.Bridge.ProjectSystem.UnitySolutionBuilder.CreateSolutionFromAssetDatabase ()
SyntaxTree.VisualStudio.Unity.Bridge.ProjectFilesGenerator.GenerateProject ()
SyntaxTree.VisualStudio.Unity.Bridge.ProjectFilePostprocessor.OnPreGeneratingCSProjectFiles ()
System.Reflection.MonoMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) (at /Users/builduser/buildslave/mono/build/mcs/class/corlib/System.Reflection/MonoMethod.cs:222)
Rethrow as TargetInvocationException: Exception has been thrown by the target of an invocation.
System.Reflection.MonoMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) (at /Users/builduser/buildslave/mono/build/mcs/class/corlib/System.Reflection/MonoMethod.cs:232)
System.Reflection.MethodBase.Invoke (System.Object obj, System.Object[] parameters) (at /Users/builduser/buildslave/mono/build/mcs/class/corlib/System.Reflection/MethodBase.cs:115)
UnityEditor.AssetPostprocessingInternal.OnPreGeneratingCSProjectFiles () (at C:/buildslave/unity/build/Editor/Mono/AssetPostprocessor.cs:194)
UnityEditor.VisualStudioIntegration.SolutionSynchronizer.Sync () (at C:/buildslave/unity/build/Editor/Mono/VisualStudioIntegration/SolutionSynchronizer.cs:207)
UnityEditor.SyncVS.SyncSolution () (at C:/buildslave/unity/build/Editor/Mono/SyncProject.cs:190)
UnityEditor.SyncVS.SyncAndOpenSolution () (at C:/buildslave/unity/build/Editor/Mono/SyncProje

Unity Down Assistant

在Unity的Download Assistant中進行下載VS組件

vs_Enterprise安裝Unity組件

在vs_Enterprise.exe 中安裝unity的組件也是失敗

其它排查方法

懷疑是Unity的問題，從新安裝 Unity，問題沒法解決。

更換其它版本的unity，好比2018.2.9f1，問題沒法解決。

解決方案

若是是VS2015，則能夠經過下載新版本的Visual Studio Tools  For Unity 進行更新。（公司機器測試經過）

若是是VS2013，下載新版本的Visual Studio Tools  For Unity 更新後也是失敗（家裏機器）。

更新VS2017，問題獲得解決。

 

相關帖子：https://forum.unity.com/threads/error-with-unity-and-visual-studio-bridge-vs-project-not-updating-when-new-scripts-added.511761/