Closed
Description
openedon Sep 8, 2019
System information
- OS version/distro: maxOS 10.14.6
- .NET Version (eg., dotnet --info): 3.0.100-preview9-014004
Issue
-
What did you do?
- Use
RetrainDnnModelfor training regression-based deep-neural-network model - Try to save trained model
- Use
-
What happened?
Application throw unhandled exception: System.ArgumentNullException and crash
- What did you expect?
We could save trained model
Source code / logs
Unhandled exception. System.ArgumentNullException: Value cannot be null. (Parameter 'value')
at System.IO.BinaryWriter.Write(String value)
at Microsoft.ML.Transforms.DnnTransformer.SaveModel(ModelSaveContext ctx)
at Microsoft.ML.Data.RowToRowTransformerBase.Microsoft.ML.ICanSaveModel.Save(ModelSaveContext ctx)
at Microsoft.ML.ModelSaveContext.SaveModel[T](RepositoryWriter rep, T value, String path)
at Microsoft.ML.ModelOperationsCatalog.Save(ITransformer model, DataViewSchema inputSchema, Stream stream)
at Microsoft.ML.ModelOperationsCatalog.Save(ITransformer model, DataViewSchema inputSchema, String filePath)
at VoiceConversionStarter.Console.Program.Train(TrainMcapOptions opts) in /Users/yamachu/Projects/github.com/yamachu/VoiceConversionStarter/VoiceConversionStarter.Console/Program.cs:line 100
at VoiceConversionStarter.Console.Program.<>c.<Main>b__2_0(TrainMcapOptions opts) in /Users/yamachu/Projects/github.com/yamachu/VoiceConversionStarter/VoiceConversionStarter.Console/Program.cs:line 118
at CommandLine.ParserResultExtensions.MapResult[TSource,TResult](ParserResult`1 result, Func`2 parsedFunc, Func`2 notParsedFunc)
at VoiceConversionStarter.Console.Program.Main(String[] args) in /Users/yamachu/Projects/github.com/yamachu/VoiceConversionStarter/VoiceConversionStarter.Console/Program.cs:line 116
I think this issue is not to check null in this line
machinelearning/src/Microsoft.ML.Dnn/DnnTransform.cs
Lines 1118 to 1119 in 8d51eee
That field in my trained model is null
full source code: https://github.com/yamachu/VoiceConversionStarter/tree/pkg-update
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