Visual Studio 2015 中的 System.Argument 异常 [英] System.Argument Exception in Visual Studio 2015
本文介绍了Visual Studio 2015 中的 System.Argument 异常的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我正在尝试开发一个 Windows 通用应用程序.今天，当我打开 xaml 编辑器时，我面临以下问题.
I am trying to develop a windows universal app. Today, when I opened xaml editor I am facing the following issue.
System.ArgumentException
An item with the same key has already been added.
at System.ThrowHelper.ThrowArgumentException(ExceptionResource resource)
at System.Collections.Generic.Dictionary`2.Insert(TKey key, TValue value,Boolean add)
at Microsoft.VisualStudio.DesignTools.HostUtility.AppPackage.CachedAppPackageInfo.DeserializeCacheMappings(String[] values)
at Microsoft.VisualStudio.DesignTools.HostUtility.AppPackage.AppXRecovery.GetExisti ngPackageInfoForProject(IHostProject project)
at Microsoft.VisualStudio.DesignTools.HostUtility.AppPackage.WindowsXamlAppPackage.CreateOrRecover(IHostProject project, IHostProjectService projectService, IHostPlatformService platformService, IHostShadowCopyService shadowCopyService, PackageService packageService, IHostFileChangeWatcherService fileChangeWatcherService, String frameworkPackagePath)
at Microsoft.VisualStudio.DesignTools.HostUtility.AppPackage.PackageService.<>c__DisplayClass10_0.<.ctor>b__0(IHostProject project, IHostProjectService projectService, IHostPlatformService platformService, IHostShadowCopyService shadowCopyService)
at Microsoft.VisualStudio.DesignTools.HostUtility.AppPackage.PackageService.CreateAppPackage(IHostProject hostProject)
at Microsoft.VisualStudio.DesignTools.HostUtility.AppPackage.PackageService.GetOrCreateAppPackage(IHostProject project, Boolean& isCreated)
at Microsoft.VisualStudio.DesignTools.HostUtility.AppPackage.PackageService.RegisterPackageForProject(IHostProject project)
at Microsoft.VisualStudio.DesignTools.DesignerHost.HostServices.HostProject.PreparePackageForActivation()
at Microsoft.VisualStudio.DesignTools.HostUtility.Platform.AppContainerProcessDomainFactory.CreateDesignerProcess(String applicationPath, String clientPort, Uri hostUri, IDictionary environmentVariables, Int32& processId, Object& processData)
at Microsoft.VisualStudio.DesignTools.DesignerContract.Isolation.Primitives.ProcessDomainFactory.ProcessIsolationDomain..ctor(ProcessDomainFactory factory, IIsolationBoundary boundary, AppDomainSetup appDomainInfo, IIsolationTarget isolationTarget, String baseDirectory)
at Microsoft.VisualStudio.DesignTools.DesignerContract.Isolation.Primitives.ProcessDomainFactory.CreateIsolationDomain(IIsolationBoundary boundary)
at Microsoft.VisualStudio.DesignTools.HostUtility.Platform.AppContainerProcessDomainFactory.CreateIsolationDomain(IIsolationBoundary boundary)
at Microsoft.VisualStudio.DesignTools.DesignerContract.Isolation.Primitives.IsolationBoundary.Initialize()
at Microsoft.VisualStudio.DesignTools.DesignerContract.Isolation.Primitives.IsolationBoundary.CreateInstance[T](Type type)
at Microsoft.VisualStudio.DesignTools.DesignerContract.Isolation.IsolatedObjectFactory.Initialize()
at Microsoft.VisualStudio.DesignTools.DesignerHost.Services.VSIsolationService.CreateObjectFactory(IIsolationTarget isolationTarget, IObjectCatalog catalog)
at Microsoft.VisualStudio.DesignTools.DesignerContract.Isolation.IsolationService.CreateLease(IIsolationTarget isolationTarget)
at Microsoft.VisualStudio.DesignTools.DesignerContract.IsolatedDesignerService.CreateLease(IIsolationTarget isolationTarget, CancellationToken cancelToken, DesignerServiceEntry& entry, IServiceProvider serviceOverrides)
at Microsoft.VisualStudio.DesignTools.DesignerContract.IsolatedDesignerService.IsolatedDesignerView.CreateDesignerViewInfo(CancellationToken cancelToken)
at Microsoft.VisualStudio.DesignTools.DesignerContract.Isolation.IsolatedTaskScheduler.InvokeWithCulture[T](CultureInfo culture, Func`2 func, CancellationToken cancelToken)
at Microsoft.VisualStudio.DesignTools.DesignerContract.Isolation.IsolatedTaskScheduler.<>c__DisplayClass10_0`1.<StartTask>b__0()
at System.Threading.Tasks.Task`1.InnerInvoke()
at System.Threading.Tasks.Task.Execute()
编辑 1:供参考的 xaml 页面.它工作正常.设计师也在为其他项目工作.
Edit 1: The xaml page for reference. It was working fine. Also the designer is working for other projects.
<Page
x:Class="RoadTransportFinal.logout"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="using:RoadTransportFinal"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
mc:Ignorable="d">
<ScrollViewer>
<Grid x:Name="ownnum" RequestedTheme="Dark">
<Grid.Background>
<LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
<GradientStop Color="Black" Offset="0"/>
<GradientStop Color="#FF015C70" Offset="1"/>
</LinearGradientBrush>
</Grid.Background>
<TextBlock x:Name="about"
Padding="5,0,0,5"
HorizontalAlignment="Stretch" Margin="21,31,17,0" TextWrapping="Wrap" Text="Thank You for using the app..... "
VerticalAlignment="Top" Foreground="#FF71CFC2" FontSize="33.333" Height="91" Width="322"/>
<Button x:Name="button_home" Content="Home" Click="home_Click" HorizontalAlignment="Stretch" Margin="133,532,160,0" VerticalAlignment="Top" Foreground="Black" FontWeight="Bold" Height="34" Width="66" BorderBrush="#FFFFFF19">
<Button.Transitions>
<TransitionCollection>
<EntranceThemeTransition/>
</TransitionCollection>
</Button.Transitions>
</Button>
<Image x:Name="image" HorizontalAlignment="Stretch" Height="35" Margin="189,79,127,0" VerticalAlignment="Top" Width="44" Source="ms-appx:///Assets/smilie.gif"/>
<TextBlock x:Name="quote1" HorizontalAlignment="Stretch" Margin="40,155,25,0" TextWrapping="Wrap" VerticalAlignment="Top" Width="295" Height="76" FontSize="18.667">
<Run Text=""Its better to be Mr. Late than Late Mr.""/>
<LineBreak/>
<Run Text=" -Anonymous"/>
</TextBlock>
<TextBlock x:Name="quote2" HorizontalAlignment="Stretch" Margin="49,255,42,0" TextWrapping="Wrap" VerticalAlignment="Top" Width="269" Height="85">
<Run FontWeight="Bold" Text=" FOLLOW RULES"/>
<LineBreak/>
<Run FontWeight="Bold" Text=" DRIVE SAFELY"/>
<LineBreak/>
<Run FontWeight="Bold" Text=" STAY HAPPY "/>
<LineBreak/>
<Run FontWeight="Bold" Text=" STAY BLESSED"/>
<LineBreak/>
<Run FontWeight="Bold" Text=" "/>
</TextBlock>
<Image x:Name="likefb" HorizontalAlignment="Stretch" Height="22" Margin="128,382,135,0" VerticalAlignment="Top" Source="ms-appx:///Assets/fb_icon.png"/>
<HyperlinkButton Content="Facebook" NavigateUri="https://www.facebook.com/rishabh.saxena11" HorizontalAlignment="Stretch" Margin="230,375,47,0" VerticalAlignment="Top" FontSize="18.667" Height="34" Width="83" Foreground="White" FontWeight="Bold"/>
<Image x:Name="thumbsup" HorizontalAlignment="Stretch" Height="22" Margin="4,157,326,0" VerticalAlignment="Top" Width="30" Source="ms-appx:///Assets/thumbsup.png"/>
<Image x:Name="thumbsup2" HorizontalAlignment="Stretch" Height="32" Margin="83,260,235,0" VerticalAlignment="Top" Width="42" Source="ms-appx:///Assets/thumbsup.png"/>
<Image x:Name="thumbsup3" HorizontalAlignment="Stretch" Height="32" Margin="249,259,69,0" VerticalAlignment="Top" Width="42" Source="ms-appx:///Assets/thumbsup.png"/>
<Image x:Name="image2" HorizontalAlignment="Stretch" Height="24" Margin="144,411,143,0" VerticalAlignment="Top" Width="73" Source="ms-appx:///Assets/twitter.png"/>
<HyperlinkButton Content="Twitter" NavigateUri="" HorizontalAlignment="Stretch" Margin="229,406,60,0" VerticalAlignment="Top" Foreground="White" FontWeight="Bold" FontSize="18.667" Height="35"/>
<Image x:Name="instagram" HorizontalAlignment="Stretch" Height="48" Margin="130,434,131,0" VerticalAlignment="Top" Source="ms-appx:///Assets/instagram.png"/>
<HyperlinkButton Content="Instagram" NavigateUri="https://instagram.com/rishabh.saxena11" HorizontalAlignment="Stretch" Margin="228,436,42,0" VerticalAlignment="Top" Foreground="White" FontSize="18.667" FontWeight="Bold"/>
<Button x:Name="exit" Content="Exit" HorizontalAlignment="Stretch" Margin="215,533,79,0" Click="exit_Click" VerticalAlignment="Top" BorderBrush="#FFFFFF19" Foreground="Black" FontWeight="Bold" Width="66"/>
</Grid>
</ScrollViewer>
任何帮助将不胜感激！谢谢.
Anyhelp will be appreciated! Thanks.
推荐答案
最后，我能够通过删除整个 Source 文件夹来解决这些问题.然后我将源取回了我的地图并得到了它现在工作正常.我认为这是 Team Foundation Server 的问题.
Finally, I was able to solve the issues by removing my entire Source folder. Then I got the source back my map and get and it is working fine now. I think it is an issue with Team Foundation Server.
这篇关于Visual Studio 2015 中的 System.Argument 异常的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
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