The new Preferences System in Brackets was introduced in Sprint 36 (released February 2014) and now that pretty much all remains of the old system are gone (that is, converted to the new format), the conversion function PreferencesManager.convertPreferences() is about to be removed in the near future, probably in Release 1.1. Your extension makes use of this method and thus, it'll probably not work any longer after that code is removed.
Simply remove the function call :)
The new Preferences System in Brackets was introduced in Sprint 36 (released February 2014) and now that pretty much all remains of the old system are gone (that is, converted to the new format), the conversion function
PreferencesManager.convertPreferences()
is about to be removed in the near future, probably in Release 1.1. Your extension makes use of this method and thus, it'll probably not work any longer after that code is removed. Simply remove the function call :)For more information, take a look at https://github.com/adobe/brackets/issues/8751#issuecomment-60777334.