Don't access value if property doesn't exist.

7 years ago · cbcd0ffb06
1 changed files with 1 additions and 1 deletions
--- a/src/ui/preferences/GeneralSettings.qml
+++ b/src/ui/preferences/GeneralSettings.qml
@ -504,7 +504,7 @@ QGCView {
				@@ -504,7 +504,7 @@ QGCView {
                            Item { width: rtkGrid.firstColWidth; height: 1 }
                            QGCButton {
                                text:               qsTr("Save Current Base Position")
-                                enabled:            QGroundControl.gpsRtk.valid.value
+                                enabled:            QGroundControl.gpsRtk && QGroundControl.gpsRtk.valid.value
                                Layout.columnSpan:  2

                                onClicked: {