C# 在Emulator中打开PDF文件

我有以下代码：

private async void LaunchPDF(string name) 
        {
            var file = await Windows.ApplicationModel.Package.Current.InstalledLocation.GetFileAsync(name);

            if (file != null)
            {
                // Set the option to show the picker
                var options = new Windows.System.LauncherOptions();
                options.DisplayApplicationPicker = true;

                // Launch the retrieved file
                bool success = await Windows.System.Launcher.LaunchFileAsync(file, options);
                if (success)
                {
                    // File launched
                    Debug.WriteLine("File Launched");
                }
                else
                {
                    // File launch failed
                    Debug.WriteLine("File Launched Failed");
                }
            }
            else
            {
                // Could not find file
                Debug.WriteLine("File not found");
            }
        }

此方法在此处调用：

private void longListSelector_SelectionChanged(object sender, SelectionChangedEventArgs e)
        {
            MyObject item  =  longListSelector.SelectedItem as MyObject;
            LaunchPDF("Data/PDF/" + item.SubTitle + ".pdf");
        }

我正在Windows Phone 8 Emulator上进行测试，当我单击长列表选择器中的项目时，出现以下错误：

{System.ArgumentException: Value does not fall within the expected range.
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult()
   at MyApp.Classes.Views.PDFPage.<LaunchPDF>d__0.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.AsyncMethodBuilderCore.<ThrowAsync>b__0(Object state)}

如何解决这个问题？我做错了什么

编辑

我也设置了这个，更改它的构建操作

右键单击PDF文档

点击属性

---

将生成操作从“无”更改为“内容”

至少，您需要使用适当的Windows路径分隔符。LaunchPdF@Data\pdf\+item.SubTitle+.pdf@WiredPairie我也试过了，但仍然不起作用，我怎样才能在emulator上测试它呢？是否打开pdf？当前无法安装应用程序。。。难道你不能访问一个可以测试它的物理设备吗？