Plot Strings on the X-Axis

Hello,

I am having a simple chart with some datapoints:

<charts:XYChart x:Name="diagram" GridLineMajorVisibility="Y" Height="340" Width="640" Padding="20" IsEnabled="True">
<charts:XYChart.YAxes >
<charts:XYDoubleAxis x:Name="Y"
Minimum ="0"
AreMajorTicksVisible="True"
AreMinorTicksVisible="false"
AreLabelsVisible="True"
TickMajorInterval="1" TickMinorInterval="0.25">
<charts:XYDoubleAxis.Ranges>
<charts:XYRange x:Name="test0" Minimum="0.5" Maximum="10" Background="#33D3D3D3" />
<charts:XYRange x:Name="test1" Minimum="0.25" Maximum="0.5" Background="#33808080" />
<charts:XYRange x:Name="test2" Minimum="-0.1" Maximum="0.25" Background="#33000000"/>
</charts:XYDoubleAxis.Ranges>
</charts:XYDoubleAxis>
</charts:XYChart.YAxes>

<charts:XYChart.XAxes >
<charts:XYDoubleAxis x:Name="X"
Minimum="0"
Maximum="1"
AreLabelsVisible="false"
AreMajorTicksVisible="false"
AreMinorTicksVisible="false" >

</charts:XYDoubleAxis>
</charts:XYChart.XAxes>

<charts:ScatterSeries ItemsSource="{Binding Path=ChartObjects}"
YPath="value"
XPath="name"
LabelVisibility="PointerProximity"
LabelFormat="{}{0:0.00}">

</charts:ScatterSeries>
</charts:XYChart>

I will get following Error:

1.Error type:

System.Windows.Data Error: 4 : Cannot find source for binding with reference 'RelativeSource FindAncestor, AncestorType='ActiproSoftware.Windows.Controls.Navigation.ZoomDecorator', AncestorLevel='1''. BindingExpression:Path=ZoomLevelAnimated; DataItem=null; target element is 'ScaleTransform' (HashCode=43616934); target property is 'ScaleX' (type 'Double')

Is it because i am using strings to plot on the x-Axis instead of numeric values?

Is this error the reason why i cannot hide the labels and the ticks of the X-Axis?

Thanks

I am using Version 14.1.0602