所以这个错误一直困扰着我一整天。 它只是简单地无法编译我的项目。我曾尝试为web-player / standalone / etc编译，但它给了我错误。
这是错误：
NullReferenceException: Object reference not set to an instance of an object
UnityEditor.PluginImporter+<GetImporters>c__AnonStoreyC.<>m__E (UnityEditor.PluginImporter imp) (at C:/buildslave/unity/build/artifacts/generated/common/editor/PluginImporterBindings.gen.cs:104)
System.Linq.Enumerable+<CreateWhereIterator>c__Iterator1D`1[UnityEditor.PluginImporter].MoveNext ()
System.Collections.Generic.List`1[UnityEditor.PluginImporter].AddEnumerable (IEnumerable`1 enumerable) (at /Users/builduser/buildslave/mono-runtime-and-classlibs/build/mcs/class/corlib/System.Collections.Generic/List.cs:128)
System.Collections.Generic.List`1[UnityEditor.PluginImporter]..ctor (IEnumerable`1 collection) (at /Users/builduser/buildslave/mono-runtime-and-classlibs/build/mcs/class/corlib/System.Collections.Generic/List.cs:65)
System.Linq.Enumerable.ToArray[PluginImporter] (IEnumerable`1 source)
UnityEditor.PluginImporter.GetImporters (System.String platformName) (at C:/buildslave/unity/build/artifacts/generated/common/editor/PluginImporterBindings.gen.cs:103)
UnityEditor.PluginImporter.GetImporters (BuildTarget platform) (at C:/buildslave/unity/build/artifacts/generated/common/editor/PluginImporterBindings.gen.cs:111)
UnityEditor.AssemblyHelper.AddReferencedAssembliesRecurse (System.String assemblyPath, System.Collections.Generic.List`1 alreadyFoundAssemblies, System.String[] allAssemblyPaths, System.String[] foldersToSearch, System.Collections.Generic.Dictionary`2 cache, BuildTarget target) (at C:/buildslave/unity/build/Editor/Mono/AssemblyHelper.cs:129)
UnityEditor.AssemblyHelper.FindAssembliesReferencedBy (System.String[] paths, System.String[] foldersToSearch, BuildTarget target) (at C:/buildslave/unity/build/Editor/Mono/AssemblyHelper.cs:198)
UnityEditor.HostView:OnGUI()
和
Error building Player: Extracting referenced dlls failed.`
当我点击Play时，项目运作完美无缺。另外我不知道它为什么告诉我＆＃34; PluginImporter＆＃34;因为我没有使用任何插件。
我已尝试将Project Api Compability设置为NET 2.0，但仍然没有骰子。
任何人都有任何想法？感谢。