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NullReferenceException during DatastoreDb.Create in F# .NET Core app

See original GitHub issue

In an empty F# .NET Core application this line of code throws a NullReferenceException:

let db = DatastoreDb.Create "<some-project-id>"

These are the exception details:

Exception message: Object reference not set to an instance of an object.

Exception type: System.NullReferenceException

Stack trace:    at Google.Api.Gax.Grpc.UserAgentBuilder.AppendDotNetEnvironment()
   at Google.Api.Gax.Grpc.ServiceSettingsBase..ctor()
   at Google.Cloud.Datastore.V1.DatastoreClientImpl..ctor(DatastoreClient grpcClient, DatastoreSettings settings)
   at Google.Cloud.Datastore.V1.DatastoreClient.Create(Channel channel, DatastoreSettings settings)
   at Google.Cloud.Datastore.V1.DatastoreDb.Create(String projectId, String namespaceId, DatastoreClient client)
   at Program.subscribeToMailingList(Subscriber subscriber)

Issue Analytics

State:
Created 7 years ago
Comments:12

Top GitHub Comments

1reaction

dustinmoriscommented, Mar 11, 2017

Ok makes sense. Well… that is sort of the beauty of OpenSource 😃 I love FSharp and the gcloud, this SDK is brilliant and my project relies on it and I don’t want to be blocked until this is resolved, so it was kind of my duty to investigate until I can keep moving, right? 😉

Also happy to help where I can!

1reaction

jskeetcommented, Mar 11, 2017

Thanks very much for reporting this. It sounds like Microsoft.Extensions.PlatformAbstractions.PlatformServices.Default is probably returning null. We’ll look into it.