Extension error with a null exception

[cezarypiatek]

Extension error with a null exception

[cezarypiatek]

Hi

Thanks for the feedback. I'm still working on VS 15.5.0 so I haven't had chance to test it on newer version. Could you provide a sample code that cause this exception of code fix?

[OmiCron07]

I have a lot of null reference exceptions too. VS 15.6.4 and I get a lot of these errors when creating a response :

using System.Collections.Generic;
using System.Runtime.Serialization;
using Nms.Client.Abf.Shared.Contracts.Detailing.Entities;

namespace Nms.Client.Abf.Shared.Contracts.Detailing
{
  [DataContract]
  public class GetDetailingStatusesResponse : BaseAbfResponse
  {
    public GetDetailingStatusesResponse()
    {
    }

    public GetDetailingStatusesResponse(List<StatusEntity> statuses)
    {
      Statuses = statuses;
    }


    public List<StatusEntity> Statuses { get; }
  }
}

[cezarypiatek]

I've installed VS 15.6.5 but I'm unable to reproduce this problem. I would like to help but I need an example code that cause this issue. Maybe there was an issue with roslyn and VS 15.6.4 and 15.6.5 update fixed that.

[OmiCron07]

ClassLibrary5.zip

There a repro with a .Net Standard class library, didn't test with a classic class library.

using System.Collections.Generic;

namespace ClassLibrary5
{
  public class GetReportsResponse : BaseAbfResponse
  {
    public GetReportsResponse(List<string> reports)
    {
    }
  }

  public abstract class BaseAbfResponse
  {
    public bool IsSuccessful => true;
  }
}

[cezarypiatek]

@OmiCron07 thanks for the example code which helped me to reproduce the issue. I've prepared the fix but I'm unable to test it because of the issue dotnet/roslyn#25962 This also prevents me from releasing fix for #13

[OmiCron07]

Does the version 15.6.6 fix the problem? There are no release notes yet.

[cezarypiatek]

The problem seems to persist in 15.6.6 (unlike #13)