I use libraries tweet.php , but error like this. help me

[eluser]bongbee[/eluser]
http://localhost/ELC/tweet_test/

i do it in my local computer, So I have error like this :

----------------------------------------------

A PHP Error was encountered

Severity: Notice

Message: Trying to get property of non-object

Filename: libraries/tweet.php

Line Number: 205[/code]

A PHP Error was encountered

Severity: Notice

Message: Trying to get property of non-object

Filename: libraries/tweet.php

Line Number: 205

A PHP Error was encountered

Severity: Notice

Message: Trying to get property of non-object

Filename: libraries/tweet.php

Line Number: 478

A PHP Error was encountered

Severity: Warning

Message: Cannot modify header information - headers already sent by (output started at D:\AppServ\www\ELC\system\core\Exceptions.php:170)

Filename: libraries/tweet.php

Line Number: 389
hi there

exception 'tweetException' with message '401 | Request Failed: - ' in D:\AppServ\www\ELC\application\libraries\tweet.php:205
Stack trace:
#0 D:\AppServ\www\ELC\application\libraries\tweet.php(172): tweetConnection->_getResponse('Resource id #42')
#1 D:\AppServ\www\ELC\application\libraries\tweet.php(110): tweetConnection->_addCurl('http://api.twit...', Array)
#2 D:\AppServ\www\ELC\application\libraries\tweet.php(502): tweetConnection->get('http://api.twit...', Array)
#3 D:\AppServ\www\ELC\application\libraries\tweet.php(483): tweetOauth->_httpRequest('GET', 'http://api.twit...')
#4 D:\AppServ\www\ELC\application\libraries\tweet.php(477): tweetOauth->_getRequestToken()
#5 D:\AppServ\www\ELC\application\libraries\tweet.php(389): tweetOauth->_getAuthorizationUrl()
#6 D:\AppServ\www\ELC\application\libraries\tweet.php(34): tweetOauth->login()
#7 D:\AppServ\www\ELC\application\controllers\tweet_test.php(31): tweet->login()
#8 D:\AppServ\www\ELC\system\core\CodeIgniter.php(288): Tweet_test->__construct()
#9 D:\AppServ\www\ELC\index.php(201): require_once('D:\AppServ\www\...')
#10 {main}





Please Help me!!!!!
:down: