Fix a possible issue if no materials or no profiles exist

diff --git a/Cura/gui/simpleMode.py b/Cura/gui/simpleMode.py
index c52fa9346f601239155fddbe43044a0d04d8a9e5..32cfe3b8c724bbd0fac181a34cb1ea873cfd27c2 100644 (file)
--- a/Cura/gui/simpleMode.py
+++ b/Cura/gui/simpleMode.py
@@ -39,12 +39,13 @@ class simpleModePanel(wx.Panel):
                                        selectedMaterial = button
                                        break
 
-               if selectedMaterial is None and self._print_material_options > 0:
+               if selectedMaterial is None and len(self._print_material_options) > 0:
                        selectedMaterial = self._print_material_options[0]
 
                # Decide to show the panel or not
                if len(self._print_material_options) < 2:
-                       self.printMaterialPanel.Show(self._print_material_options[0].profile.always_visible)
+                       self.printMaterialPanel.Show(len(self._print_material_options) > 1 and \
+                                                                                self._print_material_options[0].profile.always_visible)
 
                self.printTypePanel = wx.Panel(self)
 
@@ -112,12 +113,13 @@ class simpleModePanel(wx.Panel):
                                        selectedProfile = button
                                        break
 
-               if selectedProfile is None and self._print_profile_options > 0:
+               if selectedProfile is None and len(self._print_profile_options) > 0:
                        selectedProfile = self._print_profile_options[0]
 
                # Decide if we show the profile panel or not
                if len(self._print_profile_options) < 2:
-                       self.printProfilePanel.Show(self._print_profile_options[0].profile.always_visible)
+                       self.printTypePanel.Show(len(self._print_profile_options) > 0 and \
+                                                                        self._print_profile_options[0].profile.always_visible)
 
                if selectedProfile:
                        selectedProfile.SetValue(True)