System.Private.CoreLib: Exception while executing function - Error running Azure Functions v2 locally with ML.NET

See original GitHub issue

Hey all, I have used the ML.NET tutorial here https://docs.microsoft.com/en-us/dotnet/machine-learning/tutorials/taxi-fare and wrapped the logic into an Azure Function.

I am using 2.0.1-beta.31 CLI tools and 1.0.14 from NuGet.

When executing the Function, I get this error

Http Functions:

        TaxiFarePredictor: http://localhost:7071/api/TaxiFarePredictor

[26/07/2018 06:54:15] Executing 'TaxiFarePredictor' (Reason='This function was programmatically called via the host APIs.', Id=234649db-5a6c-4d91-92ed-2af4f125a96b)
[26/07/2018 06:54:15] C# HTTP trigger TaxiFarePredictor function processed a request.
Duplicate loading of the assembly 'Microsoft.ML.Core, Version=1.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51'
Duplicate loading of the assembly 'Microsoft.ML.Api, Version=1.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51'
Duplicate loading of the assembly 'Microsoft.ML, Version=1.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51'
Duplicate loading of the assembly 'Microsoft.ML.Data, Version=1.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51'
Duplicate loading of the assembly 'TaxiFarePrediction, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null'
[26/07/2018 06:54:19] System.Private.CoreLib: Exception while executing function: TaxiFarePredictor. Microsoft.ML.Data: Entry point'Transforms.CategoricalOneHotVectorizer' not found.
[26/07/2018 06:54:19]
[26/07/2018 06:54:19] Executed 'TaxiFarePredictor' (Failed, Id=234649db-5a6c-4d91-92ed-2af4f125a96b)
[26/07/2018 06:54:19] System.Private.CoreLib: Exception while executing function: TaxiFarePredictor. Microsoft.ML.Data: Entry point'Transforms.CategoricalOneHotVectorizer' not found.

Repro: https://github.com/ChristianWeyer/azure-functions-ml-net

This is the input JSON I am using to test the Function with:

{
   "VendorId": "VTS",
   "RateCode": "1",
   "PassengerCount": 1,
   "TripDistance": 10.33,
   "PaymentType": "CSH"
}

Any ideas what could be wrong here? .cc @fabiocav

Thanks!

Issue Analytics

State:
Created 5 years ago
Comments:7 (3 by maintainers)

Top GitHub Comments

1reaction

fabiocavcommented, Jul 27, 2018

Will take a look at this as soon as possible. At a first glance, it does look like something coming from the code in those assemblies, but this needs some investigation

0reactions

fabiocavcommented, Dec 6, 2018

@ChristianWeyer we’ve worked with the ML.NET team and they were working on improvements to address this issue (as much of the problem was because of how they were loading dependencies). Closing this as there’s no action to be taken on this repo.