为什么我在 Unity 中的 MRTK 按钮只是粉红色？

Question

我在尝试为 Hololens 2 开发的应用程序的场景中添加了一些 MRTK 工具箱按钮，但这些按钮始终是粉红色的。虽然它们是可点击的。

这些是我安装的插件：

为了让它们正常工作我尝试过的事情（我总是导入建议的 Textmesh Pro 文件）：

切换构建平台
启用所有 Windows 混合现实平台功能
尝试在 Unity 2019.4.24f1 和 Unity 2020.3.1f1 上创建一个新项目
已删除库文件夹

我想可能是我没设置过，但我比较没经验。我可以做进一步的故障排除吗？

附录：我在控制台中收到一条无法删除的错误消息。（它甚至在新创建的项目中仍然存在）：

System.IO.DirectoryNotFoundException: Could not find a part of the path 'C:\Projekte\MyHololens\poc-3d-visualisierung-hololens\ButtonTest\Library\PackageCache\com.microsoft.mixedreality.toolkit.foundation@5db3df152788-1616077456490\SDK\Experimental\InteractiveElement\Examples\Scripts\CustomStateExample\KeyboardState'.
  at System.IO.__Error.WinIOError (System.Int32 errorCode, System.String maybeFullPath) [0x000f7] in <eae584ce26bc40229c1b1aa476bfa589>:0 
  at System.IO.FileSystemEnumerableIterator`1[TSource].HandleError (System.Int32 hr, System.String path) [0x00006] in <eae584ce26bc40229c1b1aa476bfa589>:0 
  at System.IO.FileSystemEnumerableIterator`1[TSource].CommonInit () [0x00054] in <eae584ce26bc40229c1b1aa476bfa589>:0 
  at System.IO.FileSystemEnumerableIterator`1[TSource]..ctor (System.String path, System.String originalUserPath, System.String searchPattern, System.IO.SearchOption searchOption, System.IO.SearchResultHandler`1[TSource] resultHandler, System.Boolean checkHost) [0x000d6] in <eae584ce26bc40229c1b1aa476bfa589>:0 
  at System.IO.FileSystemEnumerableFactory.CreateFileNameIterator (System.String path, System.String originalUserPath, System.String searchPattern, System.Boolean includeFiles, System.Boolean includeDirs, System.IO.SearchOption searchOption, System.Boolean checkHost) [0x00009] in <eae584ce26bc40229c1b1aa476bfa589>:0 
  at System.IO.Directory.InternalGetFileDirectoryNames (System.String path, System.String userPathOriginal, System.String searchPattern, System.Boolean includeFiles, System.Boolean includeDirs, System.IO.SearchOption searchOption, System.Boolean checkHost) [0x00000] in <eae584ce26bc40229c1b1aa476bfa589>:0 
  at System.IO.Directory.InternalGetFiles (System.String path, System.String searchPattern, System.IO.SearchOption searchOption) [0x00000] in <eae584ce26bc40229c1b1aa476bfa589>:0 
  at System.IO.Directory.GetFiles (System.String path, System.String searchPattern) [0x0001c] in <eae584ce26bc40229c1b1aa476bfa589>:0 
  at System.IO.DirectoryInfo.GetFiles (System.String searchPattern) [0x0000e] in <eae584ce26bc40229c1b1aa476bfa589>:0 
  at System.IO.DirectoryInfo.GetFilesSubdirs (System.Collections.ArrayList l, System.String pattern) [0x00002] in <eae584ce26bc40229c1b1aa476bfa589>:0 
  at (wrapper remoting-invoke-with-check) System.IO.DirectoryInfo.GetFilesSubdirs(System.Collections.ArrayList,string)
  at System.IO.DirectoryInfo.GetFilesSubdirs (System.Collections.ArrayList l, System.String pattern) [0x0002f] in <eae584ce26bc40229c1b1aa476bfa589>:0 
  at (wrapper remoting-invoke-with-check) System.IO.DirectoryInfo.GetFilesSubdirs(System.Collections.ArrayList,string)
  at System.IO.DirectoryInfo.GetFilesSubdirs (System.Collections.ArrayList l, System.String pattern) [0x0002f] in <eae584ce26bc40229c1b1aa476bfa589>:0 
  at (wrapper remoting-invoke-with-check) System.IO.DirectoryInfo.GetFilesSubdirs(System.Collections.ArrayList,string)
  at System.IO.DirectoryInfo.GetFilesSubdirs (System.Collections.ArrayList l, System.String pattern) [0x0002f] in <eae584ce26bc40229c1b1aa476bfa589>:0 
  at (wrapper remoting-invoke-with-check) System.IO.DirectoryInfo.GetFilesSubdirs(System.Collections.ArrayList,string)
  at System.IO.DirectoryInfo.GetFilesSubdirs (System.Collections.ArrayList l, System.String pattern) [0x0002f] in <eae584ce26bc40229c1b1aa476bfa589>:0 
  at (wrapper remoting-invoke-with-check) System.IO.DirectoryInfo.GetFilesSubdirs(System.Collections.ArrayList,string)
  at System.IO.DirectoryInfo.GetFilesSubdirs (System.Collections.ArrayList l, System.String pattern) [0x0002f] in <eae584ce26bc40229c1b1aa476bfa589>:0 
  at (wrapper remoting-invoke-with-check) System.IO.DirectoryInfo.GetFilesSubdirs(System.Collections.ArrayList,string)
  at System.IO.DirectoryInfo.GetFilesSubdirs (System.Collections.ArrayList l, System.String pattern) [0x0002f] in <eae584ce26bc40229c1b1aa476bfa589>:0 
  at (wrapper remoting-invoke-with-check) System.IO.DirectoryInfo.GetFilesSubdirs(System.Collections.ArrayList,string)
  at System.IO.DirectoryInfo.GetFilesSubdirs (System.Collections.ArrayList l, System.String pattern) [0x0002f] in <eae584ce26bc40229c1b1aa476bfa589>:0 
  at (wrapper remoting-invoke-with-check) System.IO.DirectoryInfo.GetFilesSubdirs(System.Collections.ArrayList,string)
  at System.IO.DirectoryInfo.GetFilesSubdirs (System.Collections.ArrayList l, System.String pattern) [0x0002f] in <eae584ce26bc40229c1b1aa476bfa589>:0 
  at System.IO.DirectoryInfo.GetFiles (System.String searchPattern, System.IO.SearchOption searchOption) [0x00017] in <eae584ce26bc40229c1b1aa476bfa589>:0 
  at (wrapper remoting-invoke-with-check) System.IO.DirectoryInfo.GetFiles(string,System.IO.SearchOption)
  at Microsoft.MixedReality.Toolkit.Utilities.Editor.OnLoadUtilities.FindShaderFolderInPackage () [0x0005f] in C:\Projekte\MyHololens\poc-3d-visualisierung-hololens\ButtonTest\Library\PackageCache\com.microsoft.mixedreality.toolkit.standardassets@de5423dc1456-1616077455335\EditorUtilities\OnLoadUtilities.cs:152 
  at Microsoft.MixedReality.Toolkit.Utilities.Editor.OnLoadUtilities.EnsureShaders (System.Boolean bypassIgnore) [0x00001] in C:\Projekte\MyHololens\poc-3d-visualisierung-hololens\ButtonTest\Library\PackageCache\com.microsoft.mixedreality.toolkit.standardassets@de5423dc1456-1616077455335\EditorUtilities\OnLoadUtilities.cs:42 
  at Microsoft.MixedReality.Toolkit.Utilities.Editor.OnLoadUtilities..cctor () [0x00001] in C:\Projekte\MyHololens\poc-3d-visualisierung-hololens\ButtonTest\Library\PackageCache\com.microsoft.mixedreality.toolkit.standardassets@de5423dc1456-1616077455335\EditorUtilities\OnLoadUtilities.cs:23 
UnityEditor.EditorAssemblies:ProcessInitializeOnLoadAttributes (System.Type[])

Answer 1

我解决了。问题是 MRTK 功能工具安装程序测试版安装了没有资产的包，就像 Github 存储库中的 Unity 包一样。这导致了错误。只需直接从 Github 存储库安装 Unity 包即可。

进一步阐述：如果最大，则包不会被 mrtk 功能工具导入。子文件夹的字符串长度超过 255。这是一件非常烦人的事情，因为您必须将项目基本上保存在驱动器的根目录中。

为什么我在 Unity 中的 MRTK 按钮只是粉红色？

Why are my MRTK Buttons in Unity just Pink?

unity3d

mrtk

windows-mixed-reality