Unable to load configured viewer, falling back to autodetection...

[icecity0079]

After the installation, the following error appears as follows:

Viewer Setting: Preview

Loading processor class: <class 'sublime_diagram_plugin.diagram.plantuml.PlantUMLProcessor'>
Detected 'C:\Users\Admin\AppData\Roaming\Sublime Text 3\Packages\sublime_diagram_plugin\diagram\plantuml.1.2018.1.jar'
Version Detection:
b'PlantUML version 1.2018.01 (Mon Jan 29 02:08:22 CST 2018)\r\n(GPL source distribution)\r\nJava Runtime: Java(TM) SE Runtime Environment\r\nJVM: Java HotSpot(TM) Client VM\r\nJava Version: 1.8.0_144-b01\r\nOperating System: Windows 10\r\nOS Version: 10.0\r\nDefault Encoding: GBK\r\nLanguage: zh\r\nCountry: CN\r\nMachine: LapTopS4KUA-Q\r\nPLANTUML_LIMIT_SIZE: 4096\r\nProcessors: 4\r\nMax Memory: 259,522,560\r\nTotal Memory: 16,252,928\r\nFree Memory: 12,276,536\r\nUsed Memory: 3,976,392\r\nThread Active Count: 1\r\n\r\nThe environment variable GRAPHVIZ_DOT has been set to C:\Program Files (x86)\Graphviz2.38\bin\dot.exe\r\nDot executable is C:\Program Files (x86)\Graphviz2.38\bin\dot.exe\r\nDot version: dot - graphviz version 2.38.0 (20140413.2041)\r\r\nInstallation seems OK. File generation OK\r\n'
PlantUML Smoke Check:
b'The environment variable GRAPHVIZ_DOT has been set to C:\Program Files (x86)\Graphviz2.38\bin\dot.exe\r\nDot executable is C:\Program Files (x86)\Graphviz2.38\bin\dot.exe\r\nDot version: dot - graphviz version 2.38.0 (20140413.2041)\r\r\nInstallation seems OK. File generation OK\r\n'
Loaded processor: <sublime_diagram_plugin.diagram.plantuml.PlantUMLProcessor object at 0x000001C52A4DDA90>
Loading viewer class from configuration: <class 'sublime_diagram_plugin.diagram.preview.PreviewViewer'>
Unable to load configured viewer, falling back to autodetection...
Traceback (most recent call last):
File "C:\Users\Admin\AppData\Roaming\Sublime Text 3\Packages\sublime_diagram_plugin\diagram_init_.py", line 59, in setup
vwr.load()
File "C:\Users\Admin\AppData\Roaming\Sublime Text 3\Packages\sublime_diagram_plugin\diagram\preview.py", line 8, in load
raise Exception("Currently only supported on MacOS")
Exception: Currently only supported on MacOS
Trying Viewer Sublime3Viewer
Loading viewer class: <class 'sublime_diagram_plugin.diagram.sublime3.Sublime3Viewer'>
Loaded viewer: <sublime_diagram_plugin.diagram.sublime3.Sublime3Viewer object at 0x000001C52A4E46A0>
Processors: [<sublime_diagram_plugin.diagram.plantuml.PlantUMLProcessor object at 0x000001C52A4DDA90>]
Viewer: <sublime_diagram_plugin.diagram.sublime3.Sublime3Viewer object at 0x000001C52A4E46A0>

The default configuration error of the Diagram.sublime-settings file is checked

"Viewer": "Preview", after changing to Sublime3Viewer, the problem is solved