Fix compile error

src/slic3r/GUI/DeviceManager.cpp

@@ -1175,6 +1175,12 @@ void MachineObject::reset_mapping_result(std::vector<FilamentInfo>& result)
     }
 }
 
+bool MachineObject::is_main_extruder_on_left() const
+{
+    // only means the extruder is on the left hand when extruder id is 0
+    return false;
+}
+
 bool MachineObject::is_multi_extruders() const
 {
     return m_extder_data.total_extder_count > 1;

src/slic3r/GUI/DeviceManager.hpp

@@ -569,6 +569,7 @@ public:
     // exceed index start with 0
     bool is_mapping_exceed_filament(std::vector<FilamentInfo>& result, int &exceed_index);
     void reset_mapping_result(std::vector<FilamentInfo>& result);
+    bool is_main_extruder_on_left() const;
     bool is_multi_extruders() const;
 
     /*online*/

src/slic3r/GUI/StatusPanel.cpp

@@ -3759,7 +3759,6 @@ void StatusPanel::on_ext_spool_edit(wxCommandEvent &event)
 
         m_filament_setting_dlg->ams_id = ams_id;
         m_filament_setting_dlg->slot_id  = slot_id;
-        m_filament_setting_dlg->tray_id = VIRTUAL_TRAY_ID;
 
         try {
             std::string sn_number;