我的应用程序在启动时抛出 MS.Internal.WrappedExceptions。我不确定异常的来源，而且我对编码很陌生，所以任何指针都会受到赞赏。它在显示加载屏幕时直接进入异常。
这是我的 XAML：如果您需要后面的代码，请告诉我
<phone:PhoneApplicationPage xmlns:my="clr-namespace:Microsoft.Phone.Controls.Maps;assembly=Microsoft.Phone.Controls.Maps"
x:Class="WPMapExample.MainPage"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:phone="clr-namespace:Microsoft.Phone.Controls;assembly=Microsoft.Phone"
xmlns:shell="clr-namespace:Microsoft.Phone.Shell;assembly=Microsoft.Phone"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
mc:Ignorable="d" d:DesignWidth="480" d:DesignHeight="768"
FontFamily="{StaticResource PhoneFontFamilyNormal}"
FontSize="{StaticResource PhoneFontSizeNormal}"
Foreground="{StaticResource PhoneForegroundBrush}"
SupportedOrientations="Portrait" Orientation="Portrait"
shell:SystemTray.IsVisible="True">
<!--LayoutRoot is the root grid where all page content is placed-->
<Grid x:Name="LayoutRoot" Background="Transparent">
<Grid.RowDefinitions>
<RowDefinition Height="Auto"/>
<RowDefinition Height="*"/>
</Grid.RowDefinitions>
<!--TitlePanel contains the name of the application and page title-->
<StackPanel x:Name="TitlePanel" Grid.Row="0" Margin="12,17,0,28">
<TextBlock x:Name="PageTitle" Text="Where'd I Park?" Margin="9,-7,0,0" Style="{StaticResource PhoneTextTitle1Style}" FontSize="68"/>
<Button x:Name="findme" Content="Find Me" HorizontalAlignment="Left" Height="79" Width="197" Click="startLocationButton_Click"/>
<Button x:Name="savecar" Content="Save Car" HorizontalAlignment="Left" Height="79" Width="197" Click="saveloadButton_Click" Margin="247,-80,0,0"/>
<Image HorizontalAlignment="Left" Height="61" Margin="176,-70,0,0" VerticalAlignment="Top" Width="92" Source="/Images/feature.settings.png"/>
<Button Content="Settings" HorizontalAlignment="Left" Height="61" Margin="199,106,0,0" VerticalAlignment="Top" Width="69" RenderTransformOrigin="0.529,0.507" Opacity="0" Click="settings_Click"/>
</StackPanel>
<!--ContentPanel - place additional content here-->
<Grid x:Name="ContentPanel" Margin="12,185,12,0" Grid.RowSpan="2">
<Grid.RowDefinitions>
<RowDefinition Height="100"/>
<RowDefinition Height="*"/>
</Grid.RowDefinitions>
<my:Map Mode="AerialWithLabels" ZoomBarVisibility="Visible" ZoomLevel="12" CredentialsProvider="***removed***" x:Name="map" Margin="0,0,0,120" Grid.RowSpan="2"/>
<TextBox x:Name="notebox" HorizontalAlignment="Left" Height="65" Margin="6,363,0,0" Grid.Row="1" TextWrapping="Wrap" Text="Notes:" VerticalAlignment="Top" Width="440" FontSize="20"/>
</Grid>
<ProgressBar Foreground="Blue" x:Name="ProgBar" IsIndeterminate="True" Height="9" HorizontalAlignment="Left" Margin="0,0,0,196" VerticalAlignment="Bottom" Width="480" Visibility="Collapsed" />
</Grid>
<!--Sample code showing usage of ApplicationBar-->
<!--<phone:PhoneApplicationPage.ApplicationBar>
<shell:ApplicationBar IsVisible="True" IsMenuEnabled="True">
<shell:ApplicationBarIconButton IconUri="/Images/appbar_button1.png" Text="Button 1"/>
<shell:ApplicationBarIconButton IconUri="/Images/appbar_button2.png" Text="Button 2"/>
<shell:ApplicationBar.MenuItems>
<shell:ApplicationBarMenuItem Text="MenuItem 1"/>
<shell:ApplicationBarMenuItem Text="MenuItem 2"/>
</shell:ApplicationBar.MenuItems>
</shell:ApplicationBar>
</phone:PhoneApplicationPage.ApplicationBar>-->
</phone:PhoneApplicationPage>
和调试输出：
'TaskHost.exe' (CLR C:\windows\system32\coreclr.dll: DefaultDomain): Loaded 'C:\windows\system32\mscorlib.ni.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'TaskHost.exe' (CLR C:\windows\system32\coreclr.dll: Silverlight AppDomain): Loaded 'C:\windows\system32\System.Windows.RuntimeHost.ni.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'TaskHost.exe' (CLR C:\windows\system32\coreclr.dll: Silverlight AppDomain): Loaded 'C:\windows\system32\System.Windows.ni.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'TaskHost.exe' (CLR C:\windows\system32\coreclr.dll: Silverlight AppDomain): Loaded 'C:\windows\system32\System.Net.ni.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'TaskHost.exe' (CLR C:\windows\system32\coreclr.dll: Silverlight AppDomain): Loaded 'C:\windows\system32\System.ni.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'TaskHost.exe' (CLR C:\windows\system32\coreclr.dll: Silverlight AppDomain): Loaded 'C:\windows\system32\System.Xml.ni.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'TaskHost.exe' (CLR C:\windows\system32\coreclr.dll: Silverlight AppDomain): Loaded 'C:\Data\Programs\{B87A23B5-2904-4341-9369-A80CA7F63BA0}\Install\WPMapExample.DLL'. Symbols loaded.
'TaskHost.exe' (CLR C:\windows\system32\coreclr.dll: Silverlight AppDomain): Loaded 'C:\windows\system32\Microsoft.Phone.ni.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'TaskHost.exe' (CLR C:\windows\system32\coreclr.dll: Silverlight AppDomain): Loaded 'C:\windows\system32\Microsoft.Phone.Interop.ni.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'TaskHost.exe' (CLR C:\windows\system32\coreclr.dll: Silverlight AppDomain): Loaded 'C:\Data\Programs\{B87A23B5-2904-4341-9369-A80CA7F63BA0}\Install\Microsoft.Phone.Controls.Maps.DLL'. Cannot find or open the PDB file.
'TaskHost.exe' (CLR C:\windows\system32\coreclr.dll: Silverlight AppDomain): Loaded 'C:\windows\system32\System.Device.ni.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'TaskHost.exe' (CLR C:\windows\system32\coreclr.dll: Silverlight AppDomain): Loaded 'C:\windows\system32\System.Core.ni.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'TaskHost.exe' (CLR C:\windows\system32\coreclr.dll: Silverlight AppDomain): Loaded 'C:\windows\system32\System.ServiceModel.ni.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'TaskHost.exe' (CLR C:\windows\system32\coreclr.dll: Silverlight AppDomain): Loaded 'C:\windows\system32\System.Runtime.Serialization.ni.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'TaskHost.exe' (CLR C:\windows\system32\coreclr.dll: Silverlight AppDomain): Loaded 'C:\windows\system32\System.Xml.Serialization.ni.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'TaskHost.exe' (CLR C:\windows\system32\coreclr.dll: Silverlight AppDomain): Loaded 'C:\windows\system32\LocationService.Interop.ni.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'TaskHost.exe' (CLR C:\windows\system32\coreclr.dll: Silverlight AppDomain): Loaded 'C:\windows\system32\en-US\mscorlib.debug.resources.dll'. Module was built without symbols.
An exception of type 'System.Runtime.InteropServices.COMException' occurred in System.Device.ni.dll and wasn't handled before a managed/native boundary
An exception of type 'System.IO.FileNotFoundException' occurred in mscorlib.ni.dll and wasn't handled before a managed/native boundary
An exception of type 'System.InvalidOperationException' occurred in System.Windows.ni.dll and wasn't handled before a managed/native boundary
An exception of type 'MS.Internal.WrappedException' occurred in System.Windows.ni.dll and wasn't handled before a managed/native boundary
An exception of type 'MS.Internal.WrappedException' occurred in System.Windows.ni.dll and wasn't handled before a managed/native boundary
An exception of type 'MS.Internal.WrappedException' occurred in System.Windows.ni.dll and wasn't handled before a managed/native boundary
The program '[2236] TaskHost.exe' has exited with code -1 (0xffffffff).