I'm working on recommendation system, which uses ML.Net and currently I've been having problems with predicting single value while creating a model. It wasn't happening before (while using the same dataset). The other problem may be negative RSquared Value of the Matrix Factorization, but I'm not sure.
I have also tried to fix Visual Studio but it did nothing.
Here are the logs:
(Microsoft.ML.ModelBuilder.Utils.Logger.Info) 2021-06-02 12:13:26.5086 DEBUG Cannot find method „PredictRecommendationAsync/3” in class Microsoft.ML.ModelBuilder.AutoMLEngine. Causes: w System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) w System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) w System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd(Task task)
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.<TryItOutText_Click>d__5.MoveNext() (Microsoft.ML.ModelBuilder.Utils.Logger.Debug)
Reinstalling of the Model Builder has worked out.