Getting this error when doing a mac build:

Unity version: 2017.1.0f3

Build Architecture: Universal

FileNotFoundException: Temp\StagingArea\The Rhythm of The Spirits Demo Build (Mac).app\Contents\Resources\Data\GI\level10\82\82dd2834c5438890fc26a470e4a40297.iws.sse does not exist
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:107)
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.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.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.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.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.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.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.Func2 includeCallback, Boolean recursive) (at C:/buildslave/unity/build/Editor/Mono/FileUtil.cs:156)
DesktopStandalonePostProcessor.CopyStagingAreaIntoDestination () (at C:/buildslave/unity/build/Editor/Mono/BuildPipeline/DesktopStandalonePostProcessor.cs:237)
DesktopStandalonePostProcessor.PostProcess () (at C:/buildslave/unity/build/Editor/Mono/BuildPipeline/DesktopStandalonePostProcessor.cs:26)
UnityEditor.OSXStandalone.OSXDesktopStandalonePostProcessor.PostProcess (BuildPostProcessArgs args) (at /Users/builduser/buildslave/unity/build/PlatformDependent/OSXPlayer/Extensions/Managed/OSXDesktopStandalonePostProcessor.cs:204)
UnityEditor.PostprocessBuildPlayer.Postprocess (BuildTargetGroup targetGroup, BuildTarget target, System.String installPath, System.String companyName, System.String productName, Int32 width, Int32 height, BuildOptions options, UnityEditor.RuntimeClassRegistry usedClassRegistry, UnityEditor.BuildReporting.BuildReport report) (at C:/buildslave/unity/build/Editor/Mono/BuildPipeline/PostprocessBuildPlayer.cs:263)
UnityEditor.HostView:OnGUI()

I found that the reason was the I was building the game into the same folder of a previous build. This works with a Windows build, but apparently not with a mac build.