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twitter4j v2.2.4 NoClassDefFoundError:

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- 13-Sep-2011 01:03 PM
- Forum: Contributed Library Questions
Hi, Iv been wrestling with this library for some hours now.

From this post I can see that v2.2.2 seemed to work so I copied the example provided there.

Here it is for quick reference
3. import twitter4j.conf.*;
4. import twitter4j.internal.async.*;
5. import twitter4j.internal.org.json.*;
6. import twitter4j.internal.logging.*;
7. import twitter4j.json.*;
8. import twitter4j.internal.util.*;
9. import twitter4j.management.*;
10. import twitter4j.auth.*;
11. import twitter4j.api.*;
12. import twitter4j.util.*;
13. import twitter4j.internal.http.*;
14. import twitter4j.*;
15. import twitter4j.internal.json.*;
17. String ConsumerKey = "*************************************************************";
18. String ConsumerSecret = "*************************************************************";
19. String oauth_token = "**********************************************************************";
20. String oauth_token_secret = "*************************************************************";
22. String msg = "Test post via P55 T4J";
23. boolean sent;
25. TwitterFactory tf;
27. void setup() {
28. size(200,200);
29. background(255);
30. sent = false;
32. ConfigurationBuilder cb = new ConfigurationBuilder();
33. cb.setDebugEnabled(true)
34. .setOAuthConsumerKey(ConsumerKey)
35. .setOAuthConsumerSecret(ConsumerSecret)
36. .setOAuthAccessToken(oauth_token)
37. .setOAuthAccessTokenSecret(oauth_token_secret);
38. tf = new TwitterFactory(cb.build());
39. }
41. void draw() {
42. if(sent) background(100);
43. }
45. void mousePressed() {
46. Twitter twitter = tf.getInstance();
47. try {
48. Status st = twitter.updateStatus(msg + " " + getDateTime());
49. println("Successfully updated the status to [" + st.getText() + "].");
50. sent = true;
51. }
52. catch (TwitterException e) {
53. println(e.getStatusCode());
54. }
55. }
58. String getDateTime() {
59. DateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd-HH-mm-ss");
60. Date date = new Date();
61. return dateFormat.format(date);
62. }
When I run the sketch an click on the mouse I get this error

java.lang.NoClassDefFoundError: com/google/appengine/api/urlfetch/HTTPRequest

I found in this forum that a possible solution is to remove twitter4j-appengine-2.2.4.jar from the library, so I did. The original erros is gone now and instead I get a 401 on the console.

From what I read here the error stems from an authentication error.

Any ideas?

Thank you

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