Getting Exception : Xamarin.Forms.Xaml.XamlParseException: Cannot assign property "Text"

Hi All,

I am Working on Multilingual functionality while i am binding my label with the Key , It is trowing Exception.
Please help Me.
`

<ContentPage.Content>
    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition Height="100" />
            <RowDefinition Height="120" />
            <RowDefinition Height="200" />
            <RowDefinition Height="77" />
        </Grid.RowDefinitions>
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="30" />
            <ColumnDefinition Width="280" />
            <ColumnDefinition Width="50" />
        </Grid.ColumnDefinitions>
        <StackLayout Grid.Row="1" Orientation="Vertical" Grid.Column="1">

            <Label Text="{translator:Translate OneApp}" TextColor="#FEFEFE" Font="15" HorizontalOptions="Center" VerticalOptions="Center" HorizontalTextAlignment="Center"></Label>
        </StackLayout>
    </Grid>
</ContentPage.Content>

`