diff --git a/share/qtcreator/qml/qmlpuppet/qml2puppet/editor3d/icongizmoimageprovider.cpp b/share/qtcreator/qml/qmlpuppet/qml2puppet/editor3d/icongizmoimageprovider.cpp
index 2e5a2b0d0a0..cf2be48316d 100644
--- a/share/qtcreator/qml/qmlpuppet/qml2puppet/editor3d/icongizmoimageprovider.cpp
+++ b/share/qtcreator/qml/qmlpuppet/qml2puppet/editor3d/icongizmoimageprovider.cpp
@@ -35,6 +35,9 @@ IconGizmoImageProvider::IconGizmoImageProvider()
 
 QImage IconGizmoImageProvider::requestImage(const QString &id, QSize *size, const QSize &requestedSize)
 {
+    Q_UNUSED(size)
+    Q_UNUSED(requestedSize)
+
     // id format: <file name>:<color name>
     QStringList parts = id.split(':');
     if (parts.size() == 2) {
diff --git a/src/plugins/qmldesigner/components/componentcore/modelnodeoperations.cpp b/src/plugins/qmldesigner/components/componentcore/modelnodeoperations.cpp
index 2c239a8aa94..91ab85dda58 100644
--- a/src/plugins/qmldesigner/components/componentcore/modelnodeoperations.cpp
+++ b/src/plugins/qmldesigner/components/componentcore/modelnodeoperations.cpp
@@ -77,22 +77,6 @@ namespace QmlDesigner {
 
 const PropertyName auxDataString("anchors_");
 
-static inline QList<QmlItemNode> siblingsForNode(const QmlItemNode &itemNode)
-{
-    QList<QmlItemNode> siblingList;
-
-    if (itemNode.isValid() && itemNode.modelNode().hasParentProperty()) {
-        QList<ModelNode> modelNodes = itemNode.modelNode().parentProperty().parentModelNode().directSubModelNodes();
-        foreach (const ModelNode &node, modelNodes) {
-            QmlItemNode childItemNode = node;
-            if (childItemNode.isValid())
-                siblingList.append(childItemNode);
-        }
-    }
-
-    return siblingList;
-}
-
 static inline void reparentTo(const ModelNode &node, const QmlItemNode &parent)
 {
 
diff --git a/src/plugins/qmldesigner/components/formeditor/formeditoritem.cpp b/src/plugins/qmldesigner/components/formeditor/formeditoritem.cpp
index 96a4cc5adf6..75f08df1bf1 100644
--- a/src/plugins/qmldesigner/components/formeditor/formeditoritem.cpp
+++ b/src/plugins/qmldesigner/components/formeditor/formeditoritem.cpp
@@ -591,7 +591,6 @@ void FormEditorFlowActionItem::paint(QPainter *painter, const QStyleOptionGraphi
     if (qmlItemNode().modelNode().hasAuxiliaryData("color"))
         flowColor = qmlItemNode().modelNode().auxiliaryData("color").value<QColor>();
 
-    const qreal scaleFactor = viewportTransform().m11();
     qreal width = 2;
 
     if (qmlItemNode().modelNode().hasAuxiliaryData("width"))
@@ -1153,7 +1152,6 @@ void FormEditorFlowDecisionItem::paint(QPainter *painter, const QStyleOptionGrap
     if (qmlItemNode().modelNode().hasAuxiliaryData("color"))
         flowColor = qmlItemNode().modelNode().auxiliaryData("color").value<QColor>();
 
-    const qreal scaleFactor = viewportTransform().m11();
     qreal width = 2;
 
     if (qmlItemNode().modelNode().hasAuxiliaryData("width"))
diff --git a/src/plugins/qmldesigner/components/propertyeditor/propertyeditorview.cpp b/src/plugins/qmldesigner/components/propertyeditor/propertyeditorview.cpp
index 5307bf522b3..f097f266e5c 100644
--- a/src/plugins/qmldesigner/components/propertyeditor/propertyeditorview.cpp
+++ b/src/plugins/qmldesigner/components/propertyeditor/propertyeditorview.cpp
@@ -212,7 +212,6 @@ void PropertyEditorView::changeValue(const QString &name)
         }
     }
 
-    bool forceReset = false;
     if (name == "state" && castedValue.toString() == "base state")
         castedValue = "";