Unity 构建和运行游戏错误：构建玩家时出错：提取引用的 dll 失败

Question

之前我使用 Unity 引擎 4.5 创建了一个游戏，现在已更新到 Unity 引擎 5。游戏运行良好并且运行完美，但是，当我单击 Android 的“构建并运行”时，出现以下错误：

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()

我该如何修复这个错误？

Answer 1

请检查您是否位于正确的平台上（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），然后重新打开（重建）Unity 项目。我注意到有时在出现此类错误时这对我有用。

我希望这有帮助！