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  1. POGetting error while integrating Twitter in my Android app
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    <p>I'm trying to integrate Twitter in my android application. I've checked Android10 and abhinavblog's code and I've changed just CONSUMER_KEY and CONSUMER_SECRET but I'm getting error from this block of code-</p> <pre><code> @Override protected Void doInBackground(Void... params) { try { Log.i(TAG, "Retrieving request token from Google servers"); final String url = provider.retrieveRequestToken(consumer, Constants.OAUTH_CALLBACK_URL); Log.i(TAG, "Popping a browser with the authorize URL : " + 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) { Log.e(TAG, "Error during OAUth retrieve request token", e); } return null; } </code></pre> <p>Logcat error is-</p> <pre><code> $02-22 11:24:48.012: W/KeyCharacterMap(515): No keyboard for id 0 02-22 11:24:48.012: W/KeyCharacterMap(515): Using default keymap: /system/usr/keychars/qwerty.kcm.bin 02-22 11:24:53.343: I/com.ecs.android.sample.twitter.PrepareRequestTokenActivity(515): Starting task to retrieve request token. 02-22 11:24:53.352: I/com.ecs.android.sample.twitter.OAuthRequestTokenTask(515): Retrieving request token from Google servers 02-22 11:24:54.374: D/dalvikvm(515): GC_FOR_MALLOC freed 10292 objects / 500672 bytes in 91ms 02-22 11:24:54.493: D/dalvikvm(515): GC_FOR_MALLOC freed 2064 objects / 289696 bytes in 71ms 02-22 11:24:54.503: D/NativeCrypto(515): Freeing OpenSSL session 02-22 11:24:55.022: W/DefaultRequestDirector(515): Authentication error: Unable to respond to any of these challenges: {} 02-22 11:24:55.022: I/global(515): Default buffer size used in BufferedReader constructor. It would be better to be explicit if an 8k-char buffer is required. 02-22 11:24:55.022: E/com.ecs.android.sample.twitter.OAuthRequestTokenTask(515): Error during OAUth retrieve request token 02-22 11:24:55.022: E/com.ecs.android.sample.twitter.OAuthRequestTokenTask(515): 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. 02-22 11:24:55.022: E/com.ecs.android.sample.twitter.OAuthRequestTokenTask(515): at oauth.signpost.AbstractOAuthProvider.handleUnexpectedResponse(AbstractOAuthProvider.java:239) 02-22 11:24:55.022: E/com.ecs.android.sample.twitter.OAuthRequestTokenTask(515): at oauth.signpost.AbstractOAuthProvider.retrieveToken(AbstractOAuthProvider.java:189) 02-22 11:24:55.022: E/com.ecs.android.sample.twitter.OAuthRequestTokenTask(515): at oauth.signpost.AbstractOAuthProvider.retrieveRequestToken(AbstractOAuthProvider.java:69) 02-22 11:24:55.022: E/com.ecs.android.sample.twitter.OAuthRequestTokenTask(515): at com.ecs.android.sample.twitter.OAuthRequestTokenTask.doInBackground(OAuthRequestTokenTask.java:55) 02-22 11:24:55.022: E/com.ecs.android.sample.twitter.OAuthRequestTokenTask(515): at com.ecs.android.sample.twitter.OAuthRequestTokenTask.doInBackground(OAuthRequestTokenTask.java:1) 02-22 11:24:55.022: E/com.ecs.android.sample.twitter.OAuthRequestTokenTask(515): at android.os.AsyncTask$2.call(AsyncTask.java:185) 02-22 11:24:55.022: E/com.ecs.android.sample.twitter.OAuthRequestTokenTask(515): at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:305) 02-22 11:24:55.022: E/com.ecs.android.sample.twitter.OAuthRequestTokenTask(515): at java.util.concurrent.FutureTask.run(FutureTask.java:137) 02-22 11:24:55.022: E/com.ecs.android.sample.twitter.OAuthRequestTokenTask(515): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1068) 02-22 11:24:55.022: E/com.ecs.android.sample.twitter.OAuthRequestTokenTask(515): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:561) 02-22 11:24:55.022: E/com.ecs.android.sample.twitter.OAuthRequestTokenTask(515): at java.lang.Thread.run(Thread.java:1096) </code></pre> <p>Why Authentication error: Unable to respond to any of these challenges: {} is empty?</p> <p>I've give Read and Write permission On Twitter Application registration.</p> <p>Any help would be greatly appreciated.</p>
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