diff --git a/ground/openpilotgcs/src/libs/eigen/Eigen/src/Core/util/Memory.h b/ground/openpilotgcs/src/libs/eigen/Eigen/src/Core/util/Memory.h
index eff86a23f..6c45b7e61 100644
--- a/ground/openpilotgcs/src/libs/eigen/Eigen/src/Core/util/Memory.h
+++ b/ground/openpilotgcs/src/libs/eigen/Eigen/src/Core/util/Memory.h
@@ -229,7 +229,7 @@ template<typename T, bool Align> inline void ei_conditional_aligned_delete(T *pt
 template<typename Scalar, typename Integer>
 inline static Integer ei_alignmentOffset(const Scalar* array, Integer size)
 {
-  typedef typename ei_packet_traits<Scalar>::type Packet;
+  typedef typename ei_packet_traits<Scalar>::type Packet __attribute__ ((unused));
   enum { PacketSize = ei_packet_traits<Scalar>::size,
          PacketAlignedMask = PacketSize-1
   };
diff --git a/ground/openpilotgcs/src/plugins/config/cfg_vehicletypes/configcustomwidget.cpp b/ground/openpilotgcs/src/plugins/config/cfg_vehicletypes/configcustomwidget.cpp
index 020138ba3..05c0a4b1f 100644
--- a/ground/openpilotgcs/src/plugins/config/cfg_vehicletypes/configcustomwidget.cpp
+++ b/ground/openpilotgcs/src/plugins/config/cfg_vehicletypes/configcustomwidget.cpp
@@ -78,6 +78,7 @@ ConfigCustomWidget::~ConfigCustomWidget()
 
 void ConfigCustomWidget::setupUI(QString frameType)
 {
+    Q_UNUSED(frameType);
     Q_ASSERT(m_aircraft);
 }
 
@@ -91,7 +92,9 @@ void ConfigCustomWidget::registerWidgets(ConfigTaskWidget &parent)
 }
 
 void ConfigCustomWidget::resetActuators(GUIConfigDataUnion *configData)
-{}
+{
+    Q_UNUSED(configData);
+}
 
 /**
    Helper function to refresh the UI widget values
@@ -219,6 +222,7 @@ QString ConfigCustomWidget::updateConfigObjectsFromWidgets()
  */
 bool ConfigCustomWidget::throwConfigError(int numMotors)
 {
+    Q_UNUSED(numMotors);
     return false;
 }
 
@@ -265,6 +269,8 @@ SpinBoxDelegate::SpinBoxDelegate(QObject *parent) :
 QWidget *SpinBoxDelegate::createEditor(QWidget *parent, const QStyleOptionViewItem &option,
                                        const QModelIndex &index) const
 {
+    Q_UNUSED(option);
+    Q_UNUSED(index);
     QSpinBox *editor = new QSpinBox(parent);
 
     editor->setMinimum(-127);
@@ -295,5 +301,6 @@ void SpinBoxDelegate::setModelData(QWidget *editor, QAbstractItemModel *model, c
 void SpinBoxDelegate::updateEditorGeometry(QWidget *editor, const QStyleOptionViewItem &option,
                                            const QModelIndex &index) const
 {
+    Q_UNUSED(index);
     editor->setGeometry(option.rect);
 }
diff --git a/ground/openpilotgcs/src/plugins/config/cfg_vehicletypes/vehicleconfig.cpp b/ground/openpilotgcs/src/plugins/config/cfg_vehicletypes/vehicleconfig.cpp
index d37a2ed74..545d81d75 100644
--- a/ground/openpilotgcs/src/plugins/config/cfg_vehicletypes/vehicleconfig.cpp
+++ b/ground/openpilotgcs/src/plugins/config/cfg_vehicletypes/vehicleconfig.cpp
@@ -86,7 +86,6 @@ void VehicleConfig::setConfigData(GUIConfigDataUnion configData)
     // get an instance of systemsettings
     SystemSettings *systemSettings = SystemSettings::GetInstance(getUAVObjectManager());
     Q_ASSERT(systemSettings);
-    SystemSettings::DataFields systemSettingsData = systemSettings->getData();
 
     UAVObjectField *guiConfig = systemSettings->getField("GUIConfigData");
     Q_ASSERT(guiConfig);
diff --git a/ground/openpilotgcs/src/plugins/config/configccattitudewidget.cpp b/ground/openpilotgcs/src/plugins/config/configccattitudewidget.cpp
index 74e9ecaa5..e4429ab1d 100644
--- a/ground/openpilotgcs/src/plugins/config/configccattitudewidget.cpp
+++ b/ground/openpilotgcs/src/plugins/config/configccattitudewidget.cpp
@@ -214,6 +214,7 @@ void ConfigCCAttitudeWidget::openHelp()
 
 void ConfigCCAttitudeWidget::setAccelFiltering(bool active)
 {
+    Q_UNUSED(active);
     setDirty(true);
 }
 
diff --git a/ground/openpilotgcs/src/plugins/config/configrevowidget.cpp b/ground/openpilotgcs/src/plugins/config/configrevowidget.cpp
index 9f85cbf76..f898682ba 100644
--- a/ground/openpilotgcs/src/plugins/config/configrevowidget.cpp
+++ b/ground/openpilotgcs/src/plugins/config/configrevowidget.cpp
@@ -900,7 +900,6 @@ void ConfigRevoWidget::doStartNoiseMeasurement()
     HomeLocation *homeLocation = HomeLocation::GetInstance(getObjectManager());
     Q_ASSERT(revoCalibration);
     Q_ASSERT(homeLocation);
-    RevoCalibration::DataFields revoCalibrationData = revoCalibration->getData();
     HomeLocation::DataFields homeLocationData = homeLocation->getData();
 
     // check if Homelocation is set
diff --git a/ground/openpilotgcs/src/plugins/config/configstabilizationwidget.h b/ground/openpilotgcs/src/plugins/config/configstabilizationwidget.h
index c2ae524b8..e4312df58 100644
--- a/ground/openpilotgcs/src/plugins/config/configstabilizationwidget.h
+++ b/ground/openpilotgcs/src/plugins/config/configstabilizationwidget.h
@@ -54,8 +54,8 @@ private:
     // Milliseconds between automatic 'Instant Updates'
     static const int AUTOMATIC_UPDATE_RATE = 500;
 
-    int m_pidBankCount;
     int boardModel;
+    int m_pidBankCount;
     int m_currentPIDBank;
 protected:
     QString mapObjectName(const QString objectName);
diff --git a/ground/openpilotgcs/src/plugins/config/fancytabwidget.cpp b/ground/openpilotgcs/src/plugins/config/fancytabwidget.cpp
index 998f5145e..a34d176e2 100644
--- a/ground/openpilotgcs/src/plugins/config/fancytabwidget.cpp
+++ b/ground/openpilotgcs/src/plugins/config/fancytabwidget.cpp
@@ -123,7 +123,6 @@ void FancyTabBar::mouseMoveEvent(QMouseEvent *e)
         m_hoverRect  = QRect();
 
         if (m_hoverIndex >= 0) {
-            QRect oldHoverRect = m_hoverRect;
             m_hoverRect = tabRect(m_hoverIndex);
             m_hoverControl.start();
         }
diff --git a/ground/openpilotgcs/src/plugins/config/input.ui b/ground/openpilotgcs/src/plugins/config/input.ui
index aa3d1a7f4..b6a1f765e 100644
--- a/ground/openpilotgcs/src/plugins/config/input.ui
+++ b/ground/openpilotgcs/src/plugins/config/input.ui
@@ -1756,7 +1756,7 @@ Setup the flight mode channel on the RC Input tab if you have not done so alread
                </widget>
               </item>
               <item row="1" column="2" rowspan="2">
-               <widget class="QFrame" name="frame">
+               <widget class="QFrame" name="frame1">
                 <property name="minimumSize">
                  <size>
                   <width>120</width>
diff --git a/ground/openpilotgcs/src/plugins/config/mixercurve.ui b/ground/openpilotgcs/src/plugins/config/mixercurve.ui
index cd47bd04e..37d8925ee 100644
--- a/ground/openpilotgcs/src/plugins/config/mixercurve.ui
+++ b/ground/openpilotgcs/src/plugins/config/mixercurve.ui
@@ -272,16 +272,6 @@
        </spacer>
       </item>
      </layout>
-     <zorder>GenerateCurve</zorder>
-     <zorder>CurveSettings</zorder>
-     <zorder>CurveType</zorder>
-     <zorder>CurveMin</zorder>
-     <zorder>minLabel</zorder>
-     <zorder>CurveMax</zorder>
-     <zorder>maxLabel</zorder>
-     <zorder>CurveStep</zorder>
-     <zorder>stepLabel</zorder>
-     <zorder>verticalSpacer</zorder>
     </widget>
    </item>
    <item row="0" column="1">
diff --git a/ground/openpilotgcs/src/plugins/config/outputchannelform.h b/ground/openpilotgcs/src/plugins/config/outputchannelform.h
index a669fc2f8..a537f55e7 100644
--- a/ground/openpilotgcs/src/plugins/config/outputchannelform.h
+++ b/ground/openpilotgcs/src/plugins/config/outputchannelform.h
@@ -56,10 +56,10 @@ signals:
     void channelChanged(int index, int value);
 
 private:
+    Ui::outputChannelForm ui;
     /// Channel index
     int m_index;
     bool m_inChannelTest;
-    Ui::outputChannelForm ui;
 
 private slots:
     void linkToggled(bool state);
diff --git a/ground/openpilotgcs/src/plugins/config/outputchannelform.ui b/ground/openpilotgcs/src/plugins/config/outputchannelform.ui
index 84ee3a2be..abe5d04dd 100644
--- a/ground/openpilotgcs/src/plugins/config/outputchannelform.ui
+++ b/ground/openpilotgcs/src/plugins/config/outputchannelform.ui
@@ -495,7 +495,7 @@ margin:1px;</string>
     </widget>
    </item>
    <item row="1" column="11">
-    <widget class="QFrame" name="frame">
+    <widget class="QFrame" name="frame_1">
      <property name="minimumSize">
       <size>
        <width>45</width>
diff --git a/ground/openpilotgcs/src/plugins/config/stabilization.ui b/ground/openpilotgcs/src/plugins/config/stabilization.ui
index f89f15087..a4e85e8cb 100644
--- a/ground/openpilotgcs/src/plugins/config/stabilization.ui
+++ b/ground/openpilotgcs/src/plugins/config/stabilization.ui
@@ -24133,7 +24133,7 @@ border-radius: 5;</string>
             </spacer>
            </item>
            <item>
-            <widget class="QGroupBox" name="gridGroupBox">
+            <widget class="QGroupBox" name="gridGroupBox_1">
              <property name="title">
               <string>Cruise Control</string>
              </property>