yeah. a really long one.
DirectoryNotFoundException: Could not find a part of the path “E:\Unity\Editor\Data\PlaybackEngines\MacStandaloneSupport\Variations\macosx32_nondevelopment_mono\UnityPlayer.app\Contents\Data\Managed\etc\mono\1.0\DefaultWsdlHelpGenerator.aspx” or “Temp\StagingArea\UnityPlayer.app\Contents\Data\Managed\etc\mono\1.0\DefaultWsdlHelpGenerator.aspx”
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.Func2 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.Func2 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.Func2 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.Func2 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)
DesktopStandalonePostProcessor.CopyVariationFolderIntoStagingArea () (at C:/buildslave/unity/build/Editor/Mono/BuildPipeline/DesktopStandalonePostProcessor.cs:206)
DesktopStandalonePostProcessor.SetupStagingArea () (at C:/buildslave/unity/build/Editor/Mono/BuildPipeline/DesktopStandalonePostProcessor.cs:175)
DesktopStandalonePostProcessor.PostProcess () (at C:/buildslave/unity/build/Editor/Mono/BuildPipeline/DesktopStandalonePostProcessor.cs:23)
UnityEditor.OSXStandalone.OSXDesktopStandalonePostProcessor.PostProcess (BuildPostProcessArgs args) (at /Users/builduser/buildslave/unity/build/PlatformDependent/OSXPlayer/Extensions/Managed/OSXDesktopStandalonePostProcessor.cs:167)
UnityEditor.PostprocessBuildPlayer.Postprocess (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()