Ensure the demos folder exists before adding the menu item

kicad/menubar.cpp

@@ -27,6 +27,7 @@
 #include <bitmaps.h>
 #include <filehistory.h>
 #include <menus_helpers.h>
+#include <paths.h>
 #include <tool/action_manager.h>
 #include <tool/action_toolbar.h>
 #include <tool/tool_manager.h>
@@ -36,6 +37,7 @@
 #include "pgm_kicad.h"
 #include "kicad_id.h"
 #include <widgets/wx_menubar.h>
+#include <wx/dir.h>
 
 
 void KICAD_MANAGER_FRAME::ReCreateMenuBar()
@@ -69,7 +71,12 @@ void KICAD_MANAGER_FRAME::ReCreateMenuBar()
 
     fileMenu->Add( KICAD_MANAGER_ACTIONS::newProject );
     fileMenu->Add( KICAD_MANAGER_ACTIONS::newFromTemplate );
-    fileMenu->Add( KICAD_MANAGER_ACTIONS::openDemoProject );
+
+    if( wxDir::Exists( PATHS::GetStockDemosPath() ) )
+    {
+        fileMenu->Add( KICAD_MANAGER_ACTIONS::openDemoProject );
+    }
+
     fileMenu->Add( KICAD_MANAGER_ACTIONS::openProject );
 
     wxMenuItem* item = fileMenu->Add( openRecentMenu );