缺乏 PredictRecommendation/3 方法

Question

我正在研究使用 ML.Net 的推荐系统，目前我在创建模型时遇到了预测单个值的问题。以前没有发生过（使用相同的数据集时）。另一个问题可能是矩阵分解的负 R 平方值，但我不确定。

我也尝试过修复 Visual Studio，但它什么也没做。

这里是日志：

(Microsoft.ML.ModelBuilder.Utils.Logger.Info) 2021-06-02 12:13:26.5086 调试找不到方法“PredictRecommendationAsync/3” 在 Microsoft.ML.ModelBuilder.AutoMLEngine 类中。原因：w System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess（任务 任务）w System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification（任务 任务）w System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd（任务任务）
w StreamJsonRpc.JsonRpc.d__941.MoveNext() --- End of stack trace from previous location where exception was thrown --- w System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) w System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) w Microsoft.ML.ModelBuilder.AutoMLServiceFactory.AutoMLServiceProxy.<PredictRecommendationAsync>d__19.MoveNext() --- End of stack trace from previous location where exception was thrown --- w System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) w System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) w Microsoft.ML.ModelBuilder.TrainSession.<PredictRecommendationAsync>d__53.MoveNext() --- End of stack trace from previous location where exception was thrown --- w System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) w System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) w System.Runtime.CompilerServices.TaskAwaiter1.GetResult()
w Microsoft.ML.ModelBuilder.ToolWindows.EvaluateTabControl.d__5.MoveNext() (Microsoft.ML.ModelBuilder.Utils.Logger.Debug)

Answer 1

重新安装模型生成器已成功。