Entry point 'Transforms.CategoricalOneHotVectorizer' not found

[silence-is-beautiful]

I built my first dummy ml.net console app from my dev box and ensured it worked as expected.

Then I copied the binaries (console app + a bunch of [136] Micrososft.ML.* and its dependencies) to a windows server machine and I see the following exception.

Unhandled Exception: System.InvalidOperationException: Entry point 'Transforms.CategoricalOneHotVectorizer' not found
at Microsoft.ML.Runtime.EntryPoints.EntryPointNode..ctor(IHostEnvironment env, IChannel ch, ModuleCatalog moduleCatalog, RunContext context, String id, String entryPointName, JObject inputs, JObject outputs, Boolean checkpoint, String stageId, Single cost, String label, String group, String weight, String name)
at Microsoft.ML.Runtime.EntryPoints.EntryPointNode.ValidateNodes(IHostEnvironment env, RunContext context, JArray nodes, ModuleCatalog moduleCatalog, String label, String group, String weight, String name)
at Microsoft.ML.Runtime.EntryPoints.EntryPointGraph..ctor(IHostEnvironment env, ModuleCatalog moduleCatalog, JArray nodes)
at Microsoft.ML.Runtime.Experiment.Compile()
at Microsoft.ML.LearningPipeline.TrainTInput,TOutput
at MyMLApp2.Program.Train() in E:\ML\MyMLApp2\MyMLApp2\Program.cs:line 111
at MyMLApp2.Program.Main(String[] args) in E:\ML\MyMLApp2\MyMLApp2\Program.cs:line 64

any idea why?

[sfilipi]

Did you copy the libraries all in one folder, and in the same folder as your executable/libraries?

Might be similar to #618

[silence-is-beautiful]

Yes, I copied all the libraries in the same folder that had my test exe. Copied the same folder to a Windows Client machine and it worked. Has issue only when running from a Windows Server machine.

Here is the list of binaries that are present in the same folder as my test app. Let me know if i am missing anything here.

CpuMathNative.dll
FactorizationMachineNative.dll
FastTreeNative.dll
LdaNative.dll
Microsoft.ML.Api.dll
Microsoft.ML.Api.xml
Microsoft.ML.Core.dll
Microsoft.ML.Core.xml
Microsoft.ML.CpuMath.dll
Microsoft.ML.CpuMath.xml
Microsoft.ML.Data.dll
Microsoft.ML.Data.xml
Microsoft.ML.dll
Microsoft.ML.FastTree.dll
Microsoft.ML.FastTree.xml
Microsoft.ML.KMeansClustering.dll
Microsoft.ML.KMeansClustering.xml
Microsoft.ML.Maml.dll
Microsoft.ML.Maml.xml
Microsoft.ML.PCA.dll
Microsoft.ML.PCA.xml
Microsoft.ML.PipelineInference.dll
Microsoft.ML.PipelineInference.xml
Microsoft.ML.ResultProcessor.dll
Microsoft.ML.ResultProcessor.xml
Microsoft.ML.StandardLearners.dll
Microsoft.ML.StandardLearners.xml
Microsoft.ML.Sweeper.dll
Microsoft.ML.Sweeper.xml
Microsoft.ML.Transforms.dll
Microsoft.ML.Transforms.xml
Microsoft.ML.xml
Microsoft.Win32.Primitives.dll
netstandard.dll
Newtonsoft.Json.dll
Newtonsoft.Json.xml
System.AppContext.dll
System.CodeDom.dll
System.Collections.Concurrent.dll
System.Collections.dll
System.Collections.NonGeneric.dll
System.Collections.Specialized.dll
System.ComponentModel.dll
System.ComponentModel.EventBasedAsync.dll
System.ComponentModel.Primitives.dll
System.ComponentModel.TypeConverter.dll
System.Console.dll
System.Data.Common.dll
System.Diagnostics.Contracts.dll
System.Diagnostics.Debug.dll
System.Diagnostics.FileVersionInfo.dll
System.Diagnostics.Process.dll
System.Diagnostics.StackTrace.dll
System.Diagnostics.TextWriterTraceListener.dll
System.Diagnostics.Tools.dll
System.Diagnostics.TraceSource.dll
System.Diagnostics.Tracing.dll
System.Drawing.Primitives.dll
System.Dynamic.Runtime.dll
System.Globalization.Calendars.dll
System.Globalization.dll
System.Globalization.Extensions.dll
System.IO.Compression.dll
System.IO.Compression.ZipFile.dll
System.IO.dll
System.IO.FileSystem.dll
System.IO.FileSystem.DriveInfo.dll
System.IO.FileSystem.Primitives.dll
System.IO.FileSystem.Watcher.dll
System.IO.IsolatedStorage.dll
System.IO.MemoryMappedFiles.dll
System.IO.Pipes.dll
System.IO.UnmanagedMemoryStream.dll
System.Linq.dll
System.Linq.Expressions.dll
System.Linq.Parallel.dll
System.Linq.Queryable.dll
System.Net.Http.dll
System.Net.NameResolution.dll
System.Net.NetworkInformation.dll
System.Net.Ping.dll
System.Net.Primitives.dll
System.Net.Requests.dll
System.Net.Security.dll
System.Net.Sockets.dll
System.Net.WebHeaderCollection.dll
System.Net.WebSockets.Client.dll
System.Net.WebSockets.dll
System.ObjectModel.dll
System.Reflection.dll
System.Reflection.Extensions.dll
System.Reflection.Primitives.dll
System.Resources.Reader.dll
System.Resources.ResourceManager.dll
System.Resources.Writer.dll
System.Runtime.CompilerServices.VisualC.dll
System.Runtime.dll
System.Runtime.Extensions.dll
System.Runtime.Handles.dll
System.Runtime.InteropServices.dll
System.Runtime.InteropServices.RuntimeInformation.dll
System.Runtime.Numerics.dll
System.Runtime.Serialization.Formatters.dll
System.Runtime.Serialization.Json.dll
System.Runtime.Serialization.Primitives.dll
System.Runtime.Serialization.Xml.dll
System.Security.Claims.dll
System.Security.Cryptography.Algorithms.dll
System.Security.Cryptography.Csp.dll
System.Security.Cryptography.Encoding.dll
System.Security.Cryptography.Primitives.dll
System.Security.Cryptography.X509Certificates.dll
System.Security.Principal.dll
System.Security.SecureString.dll
System.Text.Encoding.dll
System.Text.Encoding.Extensions.dll
System.Text.RegularExpressions.dll
System.Threading.dll
System.Threading.Overlapped.dll
System.Threading.Tasks.Dataflow.dll
System.Threading.Tasks.Dataflow.xml
System.Threading.Tasks.dll
System.Threading.Tasks.Parallel.dll
System.Threading.Thread.dll
System.Threading.ThreadPool.dll
System.Threading.Timer.dll
System.ValueTuple.dll
System.Xml.ReaderWriter.dll
System.Xml.XDocument.dll
System.Xml.XmlDocument.dll
System.Xml.XmlSerializer.dll
System.Xml.XPath.dll
System.Xml.XPath.XDocument.dll

[sfilipi]

What type of app is yours? are you running inside IIS on the server machine, by chance?

[silence-is-beautiful]

Regular .Net desktop console app (.Net framework 4.7).

[Ivanidzo4ka]

DRI RESPONSE: This issue about our legacy API, which we have no intent to use. I intent to close this issue in next few days unless someone have objection to that. If you have problems with new API, please provide sample project so we can debug it on our side.