How to inject RootQuery with other Query objects

[Annichka]

I did upgrade from version 5 to v7 and need to fix query injection issue.

Sharing code from V5

 public class MainSchema : Schema
    {
        public MainSchema(IServiceProvider provider) : base(provider)
        {
            Query = provider.GetRequiredService<RootQuery>();
            Mutation = provider.GetRequiredService<RootMutation>();
        }
    }
    
     public class RootQuery : ObjectGraphType
{ 	
		public RootQuery(GameDirectoryQuery gameDirectoryQuery, GameFeaturesQuery gameFeaturesQuery)
        {
            AddField(gameDirectoryQuery.GetGames());
            AddField(gameDirectoryQuery.GetGameLogs());
            AddField(gameFeaturesQuery.GetGameFeatures());
        }
}

where GameDirectoryQuery and GameFeaturesQuery extends ObjectGraphType class.

I updated FieldType methods for each query class and when I try to attach each of them in MainSchema like:
Query = provider.GetRequiredService();
both of them works.
But getting error when I inject RootQuery with whose query classes and trying to add fields through RootQuery constructor, like this:

  public class RootQuery : ObjectGraphType
{ 	
		public RootQuery(GameDirectoryQuery gameDirectoryQuery, GameFeaturesQuery gameFeaturesQuery)
        {
            gameDirectoryQuery.GetGames();
            gameDirectoryQuery.GetGameLogs();
            gameFeaturesQuery.GetGameFeatures();
        }
}

Error Description: 

 "details": "GraphQL.Execution.UnhandledError: Error executing document.\r\n ---> System.InvalidOperationException: An Object type 'RootQuery' must define one or more fields.\r\n   at GraphQL.Utilities.SchemaValidationVisitor.VisitObject(IObjectGraphType type, ISchema schema) in /_/src/GraphQL/Utilities/Visitors/SchemaValidationVisitor.cs:line 32\r\n   at GraphQL.SchemaExtensions.Run(ISchemaNodeVisitor visitor, ISchema schema) in /_/src/GraphQL/Extensions/SchemaExtensions.cs:line 325\r\n   at GraphQL.Types.Schema.Validate() in /_/src/GraphQL/Types/Schema.cs:line 489\r\n   at GraphQL.Types.Schema.CreateAndInitializeSchemaTypes() in /_/src/GraphQL/Types/Schema.cs:line 459\r\n   at GraphQL.Types.Schema.Initialize() in /_/src/GraphQL/Types/Schema.cs:line 196\r\n   at GraphQL.DocumentExecuter.CoreExecuteAsync(ExecutionOptions options) in /_/src/GraphQL/Execution/DocumentExecuter.cs:line 101\r\n   --- End of inner exception stack trace ---"