Eroor in getting Request Token (Urgent)

[amitIIITB]

following exception is coming. plz help wt shoud i do?

=== LinkedIn's OAuth Workflow ===

Fetching the Request Token... Exception in thread "main" org.scribe.exceptions.OAuthException: Response body is incorrect. Can't extract a token from this: 'oauth_problem=signature_invalid&oauth_problem_advice=com.linkedin.security.auth.pub.LoginDeniedInvalidAuthTokenException%20while%20obtaining%20request%20token%20for%20%3APOST%26https%253A%252F%252Fapi.linkedin.com%252Fuas%252Foauth%252FrequestToken%26oauth_callback%253Dhttp%25253A%25252F%25252Flocalhost%25253A8080%25252Famit_first_link%25252F%2526oauth_consumer_key%253DS11pevSpBslWhQQnyrDgA2PHYKGNa3_7KxTUMDcMzf5k71UCe2Uep7d-RsfaEqv-%2526oauth_nonce%253D2999709751%2526oauth_signature_method%253DHMAC-SHA1%2526oauth_timestamp%253D1300504129%2526oauth_version%253D1.0%0AOAU%3AS11pevSpBslWhQQnyrDgA2PHYKGNa3_7KxTUMDcMzf5k71UCe2Uep7d-RsfaEqv-%7C%2A01%7C%2A01%7C%2A01%3A1300504129%3A%2F7Yj0rhV5F4vWmAppqhuKKnFn%2BQ%3D' at org.scribe.extractors.TokenExtractorImpl.extract(TokenExtractorImpl.java:36) at org.scribe.oauth.OAuth10aServiceImpl.getRequestToken(OAuth10aServiceImpl.java:43) at org.scribe.examples.LinkedInExample.main(LinkedInExample.java:30)