SetPhraseListAsync - 灾难性故障

本文关键字：故障 灾难性 SetPhraseListAsync | 更新日期: 2023-09-27 18:34:06

我正在尝试更新我的UWP（Windows 10）应用程序的短语列表，但更重要的是，我得到了一个"灾难性的失败"，没有原因。

我在 App.xaml 中像这样注册 Cortana.cs

StorageFile vcdStorageFile = await Package.Current.InstalledLocation.GetFileAsync(@"VoiceCommandDefinition.xml");
await VoiceCommandDefinitionManager.InstallCommandDefinitionsFromStorageFileAsync(vcdStorageFile);
Debug.WriteLine("Cortana loaded");

然后我加载我的数据（它是一个 Nest 恒温器客户端，所以我加载恒温器和结构）。之后，我尝试更新短语列表。

string thermostatsStrings = "";
string structureStrings = "";
VoiceCommandDefinition commandSetEnUs;
if (VoiceCommandDefinitionManager.InstalledCommandDefinitions.TryGetValue("Nest_en-us", out commandSetEnUs))
{
    try
    {
        List<Nest.Thermostat> thermostats = GetAllThermostats();
        if (thermostats != null)
        {
            thermostatsStrings = String.Join(", ", thermostats);
            List<String> names = thermostats.Select(thermostat => thermostat.name).ToList();
            await commandSetEnUs.SetPhraseListAsync("nest", names);
        }
    }
    catch (Exception ex)
    {
        Crashes.Log("Helpers - UpdatePhraseListThermostat", true, ex.Message + 
            Environment.NewLine + "Thermostats: " + thermostatsStrings + 
            Environment.NewLine + "Structures: " + structureStrings);
    }
    try
    {
        List<Nest.Structure> structures = GetAllStructures();
        if (structures != null)
        {
            structureStrings = String.Join(", ", structures);
            List<String> names = structures.Select(structure => structure.name).ToList();
            await commandSetEnUs.SetPhraseListAsync("place", names);
        }
    }
    catch (Exception ex)
    {
        Crashes.Log("Helpers - UpdatePhraseListStructure", true, ex.Message +
            Environment.NewLine + "Thermostats: " + thermostatsStrings +
            Environment.NewLine + "Structures: " + structureStrings);
    }
}

我的VCD文件看起来像这样

<?xml version="1.0" encoding="utf-8" ?>
<VoiceCommands xmlns="http://schemas.microsoft.com/voicecommands/1.2">
<CommandSet xml:lang="en-US" Name="Nest_en-us">
<AppName> Nest </AppName>
<Example> Open Nest </Example>
<Command Name="RequestTemp">
  <Example>Nest, what is the current temperature </Example>
  <ListenFor> What is [the] {nest} temperature </ListenFor>
  <ListenFor> What is [the] temperature in the {nest} </ListenFor>
  <ListenFor> What is [the] [current] temperature </ListenFor>
  <Feedback> Getting the temperature </Feedback>
  <VoiceCommandService Target="NestCommandService"/>
</Command>
<Command Name="SetHome">
  <Example> Nest, I'm coming home </Example>
  <ListenFor> Set {place} to home </ListenFor>
  <ListenFor> I am on my way to {place} </ListenFor>
  <ListenFor> I am coming home </ListenFor>
  <ListenFor> I am home </ListenFor>
  <ListenFor> set [status] to home </ListenFor>
  <ListenFor> set [state] to home </ListenFor>
  <ListenFor> set [mode] to home </ListenFor>
  <ListenFor> I am back </ListenFor>
  <ListenFor> I am on my way [home] </ListenFor>

  <Feedback> Setting mode to home </Feedback>
  <VoiceCommandService Target="NestCommandService"/>
</Command>

<PhraseList Label="nest">
</PhraseList>
<PhraseList Label="place">
</PhraseList>
</CommandSet>
</VoiceCommands>

我在我的应用程序（MetroLog）中内置了错误日志记录，这是它记录的内容：

2|2016-02-03T15:39:14.0034437+00:00|TRACE|2|Crashes|Helpers - UpdatePhraseListThermostat
Catastrophic failure
Catastrophic failure
Thermostats: Living Room
Structures: 
3|2016-02-03T16:03:32.2687198+00:00|TRACE|2|Crashes|Helpers - UpdatePhraseListStructure
Catastrophic failure
Catastrophic failure
Thermostats: Living Room
Structures: Home

SetPhraseListAsync - 灾难性故障

代码中有一些事故。首先，如果你尝试从应用包安装 VCD，则代码看起来有点像这样：

Uri uriVoiceCommands = new Uri("ms-appx:///VoiceCommandDefinition1.xml", UriKind.Absolute);
        StorageFile file = await StorageFile.GetFileFromApplicationUriAsync(uriVoiceCommands);
        await VoiceCommandManager.InstallCommandSetsFromStorageFileAsync(file);
其次，在

声明短语列表时，不建议不要在短语列表中插入任何元素，因此最初您必须至少放置 1 个元素。第三，灾难性错误可能是因为您正在运行大量代码来确定VCD的更新，我宁愿在单独的方法中确定要放入短语列表中的值，然后使用以下代码动态更新短语列表：

Windows.Media.SpeechRecognition.VoiceCommandSet commandSetEnUs;
    if (Windows.Media.SpeechRecognition.VoiceCommandManager.InstalledCommandSets.TryGetValue("AdventureWorksCommandSet_en-us", out commandSetEnUs))
    {
        await commandSetEnUs.SetPhraseListAsync(
          "destination", new string[] { Value1Det, value2Det });   //where Value2Det and Value1Det are the resulted outputs from thermostat 
    }
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