LEGO: check in for main to temporary branch. (#17124)

localization/LCL/it/constants/localizedConstants.enu.xlf.lcl

@@ -1219,6 +1219,15 @@
         </Str>
         <Disp Icon="Str" />
       </Item>
+      <Item ItemId=";nodeErrorMessage" ItemType="0" PsrId="308" Leaf="true">
+        <Str Cat="Text">
+          <Val><![CDATA[Parent node was not TreeNodeInfo.]]></Val>
+          <Tgt Cat="Text" Stat="Loc" Orig="New">
+            <Val><![CDATA[Il nodo padre non è TreeNodeInfo.]]></Val>
+          </Tgt>
+        </Str>
+        <Disp Icon="Str" />
+      </Item>
       <Item ItemId=";noneProviderName" ItemType="0" PsrId="308" Leaf="true">
         <Str Cat="Text">
           <Val><![CDATA[None]]></Val>