oauth.signpost.exception.OAuthNotAuthorizedException: Authorization failed (server replied with a 401). This can happen if the consumer key was not correct or the signatures did not match

See Troubleshooting OAuth 1.0A for some tips on troubleshooting OAuth.

Please verify whether the device DATE and TIME are up to date. If not, then it might cause problems with the access token.

Here below is the error message.

Error during OAUth retreive request token
oauth.signpost.exception.OAuthNotAuthorizedException: Authorization failed (server replied with a 401). This can happen if the consumer key was not correct or the signatures did not match.

Please HELP!!!

I am also having the same error. Please help

change the callback url to 'oob'

final String url = provider.retrieveRequestToken(consumer, "oob");

This is happening because ur app type is desktop

i saw the same error

I am also having the same error. Check with setting device date and call back url also but not working.
My app is working on some devices and gives problem on Samsung galaxy ace. And gives error:
oauth.signpost.exception.OAuthNotAuthorizedException: Authorization failed (server replied with a 401). This can happen if the consumer key was not correct or the signatures did not match.
But If Consumer key is not correct then why it is working on other devices. Not getting
this...... Below is my code where i get this exception.
String url = "";
try {
url = provider.retrieveRequestToken(consumer,
OAUTH_CALLBACK_URL);
Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(url))
.setFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP
| Intent.FLAG_ACTIVITY_NO_HISTORY
| Intent.FLAG_FROM_BACKGROUND);
context.startActivity(intent);
} catch (Exception e) {
e.printStackTrace();
Log.e(Common.TAG, "Error during OAUth retrieve request token"+ e);
}
return url;
}
I am using following libs.
1. signpost-commonshttp4-1.2.1.1.jar
2. signpost-core-1.2.1.1.jar
3. signpost-jetty6-1.2.1.1.jar
4. twitter4j-core-2.1.11.jar

me too

My app throwing this error " Error during OAUth retrieve request token"... what will be the solution... help

You can resolve like
1. In your twitter application settings [in twitter page: https://dev.twitter.com/apps], make sure you make the application Read & Write
2. Also, fill the call back URL and do not leave it blank.