"The following inputs are missing..." error message

[korzh]

Issue

I changed my testing application from loading training data from file (using TextLoader) to loading them from the data objects in memory using CollectionDataSource.
At the very first attempt I forgot to include my training collection to the pipeline (pipline.Add(collection) were missed) and got a very strange error message:

System.InvalidOperationException: 'The following inputs are missing: Var_b9ec7864fc3943e9b9ab9d9b38020e3c'

I guess the error message must be more understandable. Like "No training collection" or something similar.

[glebuk]

#371 Should address this. The error message is from the Entrypoint compiler. Next version of API will change this mechanism.

[Ivanidzo4ka]

DRI RESPONSE: This issue about our legacy API. I'm intent to close this issue within next few days, unless someone objects.

[korzh]

Agree. New API resolves this issue.