MongoDB C# driver Method Not Found MongoDB.Bson.Serialization.BsonSerializationInfo ByRef

Question

I am trying to get some results from MongoDB using C# driver (Latest driver Version 2.0.1.27).

This is how I call the mongo :

 public static async Task < List < MomLogModel >> MomLogAr(MomLogArModel arama) {
     var asd = Builders < MomLogModel > .Filter.Where(a => a.SipID == arama.SipID);
     asd = asd & Builders < MomLogModel > .Filter.Where(a => a._id == arama._id);
     var donucek = await mongoContex.MomLog.Find(asd).ToListAsync().ConfigureAwait(false);
 }

This is the class of MomLogModel :

 public class MomLogModel {
    [BsonRepresentation(BsonType.ObjectId)]
    public string _id {
    get;
    set;
    }

    [BsonElement("g")]
    public BsonDocument gelen {
    get;
    set;
    }

    [BsonElement("t")]
    public DateTime YaratTarih {
    get {
        return DateTime.Now;
    }
    set {
        YaratilisTarih = value;
    }
    }

    [BsonElement("m")]
    public string MesajKod {
    get;
    set;
    }

    [BsonElement("re")]
    public bool Rar {
    get;
    set;
    }

    [BsonElement("kz")]
    public double KaZa {
    get;
    set;
    }

    [BsonElement("si")]
    public int SipID {
    get;
    set;
    }
}

When I run this I get the following error :

Method not found: 'Boolean MongoDB.Bson.Serialization.IBsonArraySerializer.TryGetItemSerializationInfo(MongoDB.Bson.Serialization.BsonSerializationInfo ByRef)'.

I have tried removing the BsonRepresentation from model but it didn't solve the issue.

Also tried changing it but cannot figure out what is causing the problem at all.

Answer 1

It appears that , in a project which i was adding this projects dll , I had MongoDB.Bson and its version was an older one.

So having 2 difference versions referencing was causing the problem as @CraigWilson suggested.

Updating the reference resolved the issue.