Directory Not Found Exception While Generating APK

DirectoryNotFoundException: Could not find a part of the path "Assets\Plugins\Android\appcompat-v7-23.1.1\res\color\abc_background_cache_hint_selector_material_dark.xml" or "Temp\StagingArea\android-libraries\appcompat-v7-23.1.1\res\color\abc_background_cache_hint_selector_material_dark.xml" System.IO.File.Copy (System.String sourceFileName, System.String destFileName, Boolean overwrite) (at /Users/builduser/buildslave/mono/build/mcs/class/corlib/System.IO/File.cs:124) UnityEditor.FileUtil.UnityFileCopy (System.String from, System.String to, Boolean overwrite) (at C:/buildslave/unity/build/Editor/Mono/FileUtil.cs:207) UnityEditor.FileUtil.CopyDirectoryFiltered (System.String source, System.String target, Boolean overwrite, System.Func`2 includeCallback, Boolean recursive) (at C:/buildslave/unity/build/Editor/Mono/FileUtil.cs:142) UnityEditor.FileUtil.CopyDirectoryFiltered (System.String source, System.String target, Boolean overwrite, System.Func`2 includeCallback, Boolean recursive) (at C:/buildslave/unity/build/Editor/Mono/FileUtil.cs:156) UnityEditor.FileUtil.CopyDirectoryFiltered (System.String source, System.String target, Boolean overwrite, System.Func`2 includeCallback, Boolean recursive) (at C:/buildslave/unity/build/Editor/Mono/FileUtil.cs:156) UnityEditor.FileUtil.CopyDirectoryFiltered (System.String source, System.String target, Boolean overwrite, System.String regExExcludeFilter, Boolean recursive) (at C:/buildslave/unity/build/Editor/Mono/FileUtil.cs:121) UnityEditor.FileUtil.CopyDirectoryRecursiveFiltered (System.String source, System.String target, Boolean overwrite, System.String regExExcludeFilter) (at C:/buildslave/unity/build/Editor/Mono/FileUtil.cs:102) UnityEditor.FileUtil.CopyDirectoryRecursiveForPostprocess (System.String source, System.String target, Boolean overwrite) (at C:/buildslave/unity/build/Editor/Mono/FileUtil.cs:97) UnityEditor.Android.PostProcessor.Tasks.NativePlugins.Execute (UnityEditor.Android.PostProcessor.PostProcessorContext context) UnityEditor.Android.PostProcessor.PostProcessRunner.RunAllTasks (UnityEditor.Android.PostProcessor.PostProcessorContext context) UnityEditor.Android.PostProcessAndroidPlayer.PostProcess (BuildTarget target, System.String stagingAreaData, System.String stagingArea, System.String playerPackage, System.String installPath, System.String companyName, System.String productName, BuildOptions options, UnityEditor.RuntimeClassRegistry usedClassRegistry) UnityEditor.Android.AndroidBuildPostprocessor.PostProcess (BuildPostProcessArgs args) UnityEditor.PostprocessBuildPlayer.Postprocess (BuildTargetGroup targetGroup, BuildTarget target, System.String installPath, System.String companyName, System.String productName, Int32 width, Int32 height, System.String downloadWebplayerUrl, System.String manualDownloadWebplayerUrl, BuildOptions options, UnityEditor.RuntimeClassRegistry usedClassRegistry, UnityEditor.BuildReporting.BuildReport report) (at C:/buildslave/unity/build/Editor/Mono/BuildPipeline/PostprocessBuildPlayer.cs:186) UnityEditor.HostView:OnGUI()