c# - Object reference not set to an instance

Question

I'm trying to get tweets from twitter

But I get an error

Object reference not set to an instance

Code:

    public void Call_Tweet_Update()
    {
        var service = new TwitterService(Consumer_Key, Consumer_Secret);
        service.AuthenticateWith(Access_Token, AccessToken_Secret);

        var tweets = service.ListTweetsOnHomeTimeline(new ListTweetsOnHomeTimelineOptions { Count = 200 });
        string[] twt_id = new string[50];
        long id = 0;
        int i = 0;
        int increment = 0;
        string twtid;
        string screenname;

        foreach (var tweet in tweets)
        {
            if (tweet.InReplyToStatusId.ToString() != "")
            {
                if ((tweet.User.ScreenName == "IIPL_LTD") || (tweet.Text.StartsWith("@IIPL_LTD")))
                {
                    string replyid = tweet.InReplyToStatusId.ToString();

                    while (replyid != "")
                    {
                        if (i == 0)
                        {
                            twt_id[i] = tweet.Id.ToString();
                        }
                        id = Convert.ToInt64(replyid);
                        var twt = service.GetTweet(new GetTweetOptions { Id = id });
                        //twtid = Convert.ToInt64(tweet.Id).ToString();
                        twtid = Convert.ToInt64(twt.Id).ToString();
                        //abc = twtid;
                        i = i + 1;
                        twt_id[i] = twtid;
                        replyid = twt.InReplyToStatusId.ToString();
                       // replyid = tweet.InReplyToStatusId.ToString();
                        // replyid = "";
                        increment = increment + 1;
                    }
                  }
                }

this is what the code terminated by Object reference not set to an instance

Getting id as 38811592704 but the below line getting null value

var twt = service.GetTweet(new GetTweetOptions { Id = id });

   while (replyid != "")
   {
       if (i == 0)
       {
          twt_id[i] = tweet.Id.ToString();
       }
       id = Convert.ToInt64(replyid);
       var twt = service.GetTweet(new GetTweetOptions { Id = id });
       twtid = Convert.ToInt64(twt.Id).ToString();
    }

Any ideas? Thanks in advance.

Answer 1

The only thing that ca cause you problem here is your class constructor

new GetTweetOptions

is giving you exception. Go to the constructor of this class and see what is creating error