Unhandled exception in VS extension

Question

I have tried creating a syntax highlighter for a custom file definition. I get an exception when its loaded. I have added the /log parameter to devenv to get a log.

335 ERROR System.Exception: Duplicate EditorFormatDefinition exports with identical NameAttribute metadata exist. Duplicate name attribute is COMMENT   Editor or Editor Extension 2010/08/18 06:47:56.726 
336 ERROR System.Exception: Duplicate EditorFormatDefinition exports with identical NameAttribute metadata exist. Duplicate name attribute is STRING   Editor or Editor Extension 2010/08/18 06:47:56.730 
337 ERROR System.Exception: Duplicate EditorFormatDefinition exports with identical NameAttribute metadata exist. Duplicate name attribute is COMMENT   Editor or Editor Extension 2010/08/18 06:47:57.046 
338 ERROR System.Exception: Duplicate EditorFormatDefinition exports with identical NameAttribute metadata exist. Duplicate name attribute is STRING   Editor or Editor Extension 2010/08/18 06:47:57.048 
339 ERROR System.Exception: Duplicate EditorFormatDefinition exports with identical NameAttribute metadata exist. Duplicate name attribute is COMMENT   Editor or Editor Extension 2010/08/18 06:47:57.078 
340 ERROR System.Exception: Duplicate EditorFormatDefinition exports with identical NameAttribute metadata exist. Duplicate name attribute is STRING 

I cannot find any duplicates in my code. If needed code can be provided.

Best regards, Michael

Answer 1

You have probably installed more than 1 plugin based on the same template/namespace/guid's.