Unity build and Run game error: Error building Player: Extracting referenced dlls failed

Question

之前使用 Unity 引擎 4.5 创建了一个游戏，现在更新到 Unity 引擎 5。游戏运行很好并且正在完善但是当我点击构建和运行为 android 我得到了以下错误：
作为初学者我不知道如何处理这个错误

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.AndroidPluginImporterExtension.CheckFileCollisions (System.String buildTargetName)
    UnityEditorInternal.PluginsHelper.CheckFileCollisions (BuildTarget buildTarget) (at C:/buildslave/unity/build/Editor/Mono/Plugins/PluginsHelper.cs:25)
    UnityEditor.BuildPlayerWindow:BuildPlayerAndRun()

Answer 1

请检查您使用的平台是否正确（在构建设置中）。

如果没问题，请尝试关闭 Unity，然后手动删除 Library 文件夹（在项目目录中），然后 re-open（重建）Unity 项目。我注意到有时在这些类型的错误中对我有用。

希望对您有所帮助！

Unity build and Run game error: Error building Player: Extracting referenced dlls failed

Unity build and Run game error: Error building Player: Extracting referenced dlls failed

c#

unity3d

unity5