In Visual studio 2022, in a .net Maui project, with the extension ML.Net, when training a model, it trains right and generate the cs files ([name].consumption.cs ; [name].training.cs and [name].mlnet) but raises the error “object reference not set to an instance of an object”
Here are the complete log before and when the problem happen :
[Before]
Updating nuget dependencies… (Microsoft.ML.ModelBuilder.Utils.Logger.Info)
2024-05-11 16:08:14.5148 INFO Starting update NuGet dependencies async. (Microsoft.ML.ModelBuilder.Utils.Logger.Info)
2024-05-11 16:08:14.5148 INFO Installing nuget package, package ID: Microsoft.ML, package Version: 3.0.1 (Microsoft.ML.ModelBuilder.Utils.Logger.Info)
2024-05-11 16:08:14.5441 INFO Installing nuget package, package ID: Microsoft.ML.Vision, package Version: 3.0.1 (Microsoft.ML.ModelBuilder.Utils.Logger.Info)
2024-05-11 16:08:14.5441 INFO Installing nuget package, package ID: SciSharp.TensorFlow.Redist, package Version: 2.3.1 (Microsoft.ML.ModelBuilder.Utils.Logger.Info)
2024-05-11 16:08:14.5681 INFO COMPLETED (Microsoft.ML.ModelBuilder.Utils.Logger.Info)
2024-05-11 16:08:15.0210 DEBUG update TrainViewModel_16.RemainingSeconds (Microsoft.ML.ModelBuilder.Utils.Logger.Debug)
2024-05-11 16:08:15.0210 DEBUG update TrainViewModel_16.RemainingTime (Microsoft.ML.ModelBuilder.Utils.Logger.Debug)
[The problem]
2024-05-11 16:08:15.0621 DEBUG La référence d’objet n’est pas définie à une instance d’un objet.
Microsoft.ML.ModelBuilder.Utils.Utilities.NeedsCompileTagsAdded(Project project) dans
//src/Microsoft.ML.ModelBuilder/Utils/Utilities.cs:ligne 408
Microsoft.ML.ModelBuilder.ViewModels.TrainViewModel.AddModelItemGroup(String stateFileNameWithoutExtension, CSharpCode pFICode) dans //src/Microsoft.ML.ModelBuilder/ViewModels/TrainViewModel.cs:ligne 1195
Microsoft.ML.ModelBuilder.ViewModels.TrainViewModel.d__98.MoveNext() dans
/_/src/Microsoft.ML.ModelBuilder/ViewModels/TrainViewModel.cs:ligne 1120 (Microsoft.ML.ModelBuilder.Utils.Logger.Debug)”