Seems that the Win10 boards.txt lacks a "buld.core" property and this code throws a null pointer exception: Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException at processing.app.BaseNoGui.getBoardPreferences(BaseNoGui.java:188) Seems to be in this code ... assume Win10 plugin needs to be fixed, perhaps this should as well: ``` // Add all tools dependencies from the (possibily) referenced core String core = prefs.get("build.core"); if (core.contains(":")) { ```