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Message: The name already exists in the tree:

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Vuyiswa asked on 07 Apr 2011, 10:47 AM

This is the most Strangest error i have ever received from Silverlight. I have each control with its own name and i just added a Link button and a Menu item , i did a copy and paste of other items and renamed them from the xaml and i added a page that will be used by that menu item and i compiled the app and when i run it i get the following Error

Line: 54

Error: Unhandled Error in Silverlight Application

Code: 2028

Category: ParserError

Message: The name already exists in the tree: EchashDev.

File:

Line: 0

Position: 0

i tried googling and a lot of people are have different scenario which might be different from mine. I am not sure why Silverlight does not point to a problem element.
My xaml looks like this

<UserControl

x:Class="EchashDev.MainPage"

xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

xmlns:dataControls="clr-namespace:System.Windows.Controls;assembly=System.Windows.Controls.Data.DataForm.Toolkit"

xmlns:login="clr-namespace:EchashDev.LoginUI"

xmlns:d="http://schemas.microsoft.com/expression/blend/2008"

xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"

xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation"

xmlns:sdk="http://schemas.microsoft.com/winfx/2006/xaml/presentation/sdk"

xmlns:uriMapper="clr-namespace:System.Windows.Navigation;assembly=System.Windows.Controls.Navigation"

xmlns:navigation="clr-namespace:System.Windows.Controls;assembly=System.Windows.Controls.Navigation"

xmlns:telerikTransitions="clr-namespace:Telerik.Windows.Controls.TransitionEffects;assembly=Telerik.Windows.Controls"

xmlns:telerikNavigation="clr-namespace:Telerik.Windows.Controls;assembly=Telerik.Windows.Controls.Navigation"

mc:Ignorable="d" d:DesignWidth="900" d:DesignHeight="600" xmlns:my="clr-namespace:Telerik.ReportViewer.Silverlight;assembly=Telerik.ReportViewer.Silverlight">

<telerik:RadBusyIndicator x:Name="busyIndicator" Grid.Row="1" BusyContent="Loading data....">

<Grid x:Name="LayoutRoot" Background="#FFEFE5E5" >

<telerik:RadWrapPanel Height="76" Name="radWrapPanel4" VerticalAlignment="Top">

<telerik:RadWrapPanel.Background>

<LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">

<GradientStop Color="#FFFBE814" Offset="0"/>

<GradientStop Color="#FFDA2003" Offset="1"/>

<GradientStop Color="#FFF1DE0A" Offset="0.5"/>

</LinearGradientBrush>

</telerik:RadWrapPanel.Background></telerik:RadWrapPanel>

<telerik:RadWrapPanel HorizontalAlignment="Left" Margin="0,76,0,12" Name="radWrapPanel5" Width="134">

<telerik:RadWrapPanel.Background>

<LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">

<GradientStop Color="#FFF0F111" Offset="0"/>

<GradientStop Color="#FFFD0909" Offset="1"/>

<GradientStop Color="#FEF58C0D" Offset="0.464"/>

</LinearGradientBrush>

</telerik:RadWrapPanel.Background>

<telerikNavigation:RadMenu telerik:StyleManager.Theme="Office_Blue" Height="236" Name="radMenu1" Width="135" Orientation="Vertical">

<telerikNavigation:RadMenu.Background>

<LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">

<GradientStop Color="#FFF0F111" Offset="0"/>

<GradientStop Color="#FFFD7909" Offset="1"/>

<GradientStop Color="#FEFB971E" Offset="0.433"/>

</LinearGradientBrush>

</telerikNavigation:RadMenu.Background>

<telerikNavigation:RadMenuItem x:Name="itemcanteensolutions" Visibility="Collapsed" Tag="Canteen Solutions">

<telerikNavigation:RadMenuItem.Header>

<HyperlinkButton NavigateUri="/Tuckshop/CanteenSolutions" TargetName="MainFrame" Content="Canteen Solutions" Foreground="Black"></HyperlinkButton>