Windows , Open in Unity show the error

[u431535]

1. OS: Windows 11 Pro
2. Unity: 2022.3.1f1
3. HolisticMotionCapture v1.1.0, Windows sourcecode.zip
4. Error:
   When Open in Unity, it show 3 errors in safety mode.
   a. Assets\StandaloneFileBrowser\StandaloneFileBrowserWindows.cs(5,22): error CS0234: The type or namespace name 'Forms' does not exist in the namespace 'System.Windows' (are you missing an assembly reference?)
   b. Assets\StandaloneFileBrowser\StandaloneFileBrowserWindows.cs(7,7): error CS0246: The type or namespace name 'Ookii' could not be found (are you missing a using directive or an assembly reference?)
   c. Assets\StandaloneFileBrowser\StandaloneFileBrowserWindows.cs(14,34): error CS0246: The type or namespace name 'IWin32Window' could not be found (are you missing a using directive or an assembly reference?)

Please help to tell how to fix, thank you.