import net.miginfocom.swing.MigLayout;
import net.sf.openrocket.database.Database;
import net.sf.openrocket.database.Databases;
-import net.sf.openrocket.gui.UnitSelector;
+import net.sf.openrocket.gui.components.UnitSelector;
import net.sf.openrocket.material.Material;
import net.sf.openrocket.rocketcomponent.ComponentChangeEvent;
import net.sf.openrocket.rocketcomponent.RocketComponent;