我似乎遇到了这个问题或至少一个非常相似的问题。 当我打开 PowerBI 时，我在“成绩单”选项卡/报告上收到以下错误。

我刚刚从这里下载了最新的 pbit，它有问题： https ://microsoft.github.io/botframework-solutions/assets/analytics/virtual-assistant-analytics-sample.pbit

power bi 查询中提到的交互类型问题：

您必须将 group by 中某些列的类型值更改为文本。

将 Power BI 高级编辑器中的交互查询更改为以下它将起作用：

let
    Source = #"EventTelemetry",
    #"Added UserUtterance Column" = Table.AddColumn(Source, "UserUtterance", each if [EventName] = "BotMessageReceived" then [Text] else null),
    #"Added UserOriginalUtterance Column" = Table.AddColumn(#"Added UserUtterance Column", "UserOrigUtterance", each if [EventName] = "BotMessageReceived" then [Text] else null),
    #"Added BotMessageSpeakColumn" = Table.AddColumn(#"Added UserOriginalUtterance Column", "BotResponseSpeak", each if [EventName] = "BotMessageSend" then [Speak] else null),
    #"Added OperationID Column" = Table.AddColumn(#"Added BotMessageSpeakColumn", "OperationID", each if [EventName] = "BotMessageSend" then [ReplyActivityId] else [ActivityId]),
    #"Added BotMessageText Column" = Table.AddColumn(#"Added OperationID Column", "BotResponseText", each if [EventName] = "BotMessageSend" then [Text] else null),
    #"Grouped Rows" = Table.Group(#"Added BotMessageText Column", {"OperationID", "ConversationId"}, {{"UserUtterance", each List.Max([UserUtterance]), type text}, {"UserOrigUtterance", each List.Max([UserOrigUtterance]), type text}, {"Time", each List.Min([Time]), type datetimezone}, {"Locale", each List.Max([Locale]), type text}, {"DialogId", each List.Max([DialogId]), type text}, {"DialogStatus", each List.Max([DialogStatus]), type text}, {"DialogStepName", each List.Max([DialogStepName]), type text}, {"DialogInstanceId", each List.Max([DialogInstanceId]), type text}, {"BotResponseSpeak", each List.Max([BotResponseSpeak]), type text}, {"BotResponseText", each List.Max([BotResponseText]), type text}, {"LuisIntent", each List.Max([Luis_Intent]), type text}, {"LuisScore", each List.Max([Luis_IntentScore]), type text}, {"LuisSentimentLabel", each List.Max([Luis_SentimentLabel]), type text}, {"LuisSentimentScore", each List.Max([Luis_SentimentScore]), type text}}),
    #"Changed Type" = Table.TransformColumnTypes(#"Grouped Rows",{{"LuisSentimentScore", type number}})
in
    #"Changed Type"

如果它对某人有帮助，请告诉我:)

这有帮助，但并非所有数据都是由默认 VA 模板生成的。 默认情况下禁用脚本和对话钻取的对话消息的内容。 如果需要，还需要在遥测中间件中设置 logPersonalInformation=true。

要启用该功能，请从此更改 Startup.cs 中的这一行
``` C#
services.AddSingleton();

to this 

``` C#
services.AddSingleton<TelemetryLoggerMiddleware>(s=>new TelemetryLoggerMiddleware(s.GetService<IBotTelemetryClient>(), true));

3428 解决了新 PowerBI 模板引入的上述数据类型问题。 感谢@SSanjeevi的指点！