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LightGbmMulti System.ArgumentOutOfRangeException: Schema mismatch for label column '': expected Bool, got Key<U4> #2534

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Dmitry-A opened this issue Feb 13, 2019 · 2 comments · Fixed by #2476
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LightGbmMulti System.ArgumentOutOfRangeException: Schema mismatch for label column '': expected Bool, got Key<U4> #2534

Dmitry-A opened this issue Feb 13, 2019 · 2 comments · Fixed by #2476
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@zeahmed
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bug Something isn't working
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@Dmitry-A
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running with 0.10 bits, started getting this error on certain datasets when benchmarking AutoML (not 100% positive but likely this started happening when we upgraded to 0.10):

Processing pipeline ColumnCopying{ col=Label:0} xf=ValueToKeyMapping{ col=Label:Label} tr=LightGbmMulti{}.
LightGbmMulti{} Crashed System.ArgumentOutOfRangeException: Schema mismatch for label column '': expected Bool, got Key
Parameter name: labelCol
at Microsoft.ML.Training.TrainerEstimatorBase2.CheckLabelCompatible(Column labelCol) at Microsoft.ML.Training.TrainerEstimatorBase2.CheckInputSchema(SchemaShape inputSchema)
at Microsoft.ML.Training.TrainerEstimatorBase2.GetOutputSchema(SchemaShape inputSchema) at Microsoft.ML.Data.EstimatorChain1.GetOutputSchema(SchemaShape inputSchema)
at Microsoft.ML.Data.EstimatorChain1.Fit(IDataView input) at Microsoft.ML.Auto.SuggestedPipeline.Fit(IDataView trainData) at Microsoft.ML.Auto.AutoFitter1.ProcessPipeline(SuggestedPipeline pipeline)

Note that we're adding ValueToKeyMapping to our pipelines to get around #1969
@Ivanidzo4ka
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Should be fixed in #2476

@zeahmed zeahmed mentioned this issue Feb 13, 2019
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@Ivanidzo4ka Ivanidzo4ka added the bug Something isn't working label Feb 13, 2019
@shauheen shauheen added this to the 0219 milestone Feb 14, 2019
@Ivanidzo4ka
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Actually got fixed in #2448

@ghost ghost locked as resolved and limited conversation to collaborators Mar 24, 2022
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@zeahmed zeahmed

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Lockdown of Microsoft.ML.LightGBM public surface. zeahmed/machinelearning
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@Ivanidzo4ka @shauheen @zeahmed @Dmitry-A