Getting error to post to facebook wall <p>I've already searched google and stackoverflow but I can't find a solution. I'm trying to integrate facebook into my App so users can suggest new Beer Brands directly to my facebook fanpage thorugh my app. Because right now I'm getting like 3 e-mails a day where users suggest new beer brands.</p> <p>What I did: - Created a facebook developer account, enabled Native Android app and inserted the Key-Hash etc. - downloaded and integrated the facebook sdk. - addet internet permission - integrated the following facebook helper class:</p> <pre><code>package com.celticwolf.nsod; //changed import com.facebook.android.*; import com.facebook.android.Facebook.DialogListener; import android.app.Activity; import android.content.Context; import android.content.SharedPreferences; import android.content.SharedPreferences.Editor; import android.os.Bundle; import android.util.Log; import android.view.View; import android.view.Window; import android.widget.Toast; public class ShareOnFacebook extends Activity{ private static final String APP_ID = "35253892647899"; // changed private static final String[] PERMISSIONS = new String[] {"publish_stream"}; private static final String TOKEN = "access_token"; private static final String EXPIRES = "expires_in"; private static final String KEY = "facebook-credentials"; private Facebook facebook; private String messageToPost; public boolean saveCredentials(Facebook facebook) { Editor editor = getApplicationContext().getSharedPreferences(KEY, Context.MODE_PRIVATE).edit(); editor.putString(TOKEN, facebook.getAccessToken()); editor.putLong(EXPIRES, facebook.getAccessExpires()); return editor.commit(); } public boolean restoreCredentials(Facebook facebook) { SharedPreferences sharedPreferences = getApplicationContext().getSharedPreferences(KEY, Context.MODE_PRIVATE); facebook.setAccessToken(sharedPreferences.getString(TOKEN, null)); facebook.setAccessExpires(sharedPreferences.getLong(EXPIRES, 0)); return facebook.isSessionValid(); } @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); facebook = new Facebook(APP_ID); restoreCredentials(facebook); requestWindowFeature(Window.FEATURE_NO_TITLE); setContentView(R.layout.facebook_dialog); String facebookMessage = getIntent().getStringExtra("facebookMessage"); if (facebookMessage == null){ facebookMessage = "Test wall post"; } messageToPost = facebookMessage; } public void doNotShare(View button){ finish(); } public void share(View button){ if (! facebook.isSessionValid()) { loginAndPostToWall(); } else { postToWall(messageToPost); } } public void loginAndPostToWall(){ facebook.authorize(this, PERMISSIONS, Facebook.FORCE_DIALOG_AUTH, new LoginDialogListener()); } public void postToWall(String message){ Bundle parameters = new Bundle(); parameters.putString("message", message); parameters.putString("description", "topic share"); try { facebook.request("me"); // &lt;------ here it fails String response = facebook.request("me/feed", parameters, "POST"); Log.d("Tests", "got response: " + response); if (response == null || response.equals("") || response.equals("false")) { showToast("Blank response."); } else { showToast("Message posted to your facebook wall!"); } finish(); } catch (Exception e) { showToast("Failed to post to wall!"); e.printStackTrace(); finish(); } } class LoginDialogListener implements DialogListener { public void onComplete(Bundle values) { saveCredentials(facebook); if (messageToPost != null){ postToWall(messageToPost); } } public void onFacebookError(FacebookError error) { showToast("Authentication with Facebook failed!"); finish(); } public void onError(DialogError error) { showToast("Authentication with Facebook failed!"); finish(); } public void onCancel() { showToast("Authentication with Facebook cancelled!"); finish(); } } private void showToast(String message){ Toast.makeText(getApplicationContext(), message, Toast.LENGTH_SHORT).show(); } } </code></pre> <p>and I've addet the following Code to access the helper class:</p> <pre><code>private void shareonfb(){ Intent postOnFacebookWallIntent = new Intent(this, ShareOnFacebook.class); postOnFacebookWallIntent.putExtra("facebookMessage", "Teeeeeeeeeeeest"); startActivity(postOnFacebookWallIntent); } </code></pre> <p>Where it fails: - I'm able to log into facebook but when it asks if I want to share it fails at the following codeblock:</p> <pre><code>public void postToWall(String message){ Bundle parameters = new Bundle(); parameters.putString("message", message); parameters.putString("description", "topic share"); try { facebook.request("me"); // &lt;------------- here it fails and jups to catch String response = facebook.request("me/feed", parameters, "POST"); Log.d("Tests", "got response: " + response); if (response == null || response.equals("") || response.equals("false")) { showToast("Blank response."); } else { showToast("Message posted to your facebook wall!"); } finish(); } catch (Exception e) { showToast("Failed to post to wall!"); e.printStackTrace(); finish(); } } </code></pre> <p>here is the log: (i've marked the part where it fails)</p> <pre><code>01-06 13:19:53.795: W/ActivityThread(1220): Application com.celticwolf.alex is waiting for the debugger on port 8100... 01-06 13:19:53.805: I/System.out(1220): Sending WAIT chunk 01-06 13:19:54.205: I/System.out(1220): Debugger has connected 01-06 13:19:54.205: I/System.out(1220): waiting for debugger to settle... 01-06 13:19:54.405: I/System.out(1220): waiting for debugger to settle... 01-06 13:19:54.615: I/System.out(1220): waiting for debugger to settle... 01-06 13:19:54.820: I/System.out(1220): waiting for debugger to settle... 01-06 13:19:55.250: I/System.out(1220): waiting for debugger to settle... 01-06 13:19:55.450: I/System.out(1220): waiting for debugger to settle... 01-06 13:19:55.650: I/System.out(1220): waiting for debugger to settle... 01-06 13:19:55.850: I/System.out(1220): waiting for debugger to settle... 01-06 13:19:56.050: I/System.out(1220): waiting for debugger to settle... 01-06 13:19:56.250: I/System.out(1220): waiting for debugger to settle... 01-06 13:19:56.450: I/System.out(1220): waiting for debugger to settle... 01-06 13:19:56.650: I/System.out(1220): waiting for debugger to settle... 01-06 13:19:56.850: I/System.out(1220): waiting for debugger to settle... 01-06 13:19:57.050: I/System.out(1220): waiting for debugger to settle... 01-06 13:19:57.255: I/System.out(1220): waiting for debugger to settle... 01-06 13:19:57.455: I/System.out(1220): waiting for debugger to settle... 01-06 13:19:57.655: I/System.out(1220): waiting for debugger to settle... 01-06 13:19:57.855: I/System.out(1220): debugger has settled (1373) 01-06 13:19:58.285: I/dalvikvm-heap(1220): Grow heap (frag case) to 7.205MB for 3502096-byte allocation 01-06 13:19:58.400: I/dalvikvm-heap(1220): Grow heap (frag case) to 13.139MB for 6224656-byte allocation 01-06 13:19:58.575: I/MediaPlayer(1220): setLPAflag() in 01-06 13:19:58.575: I/MediaPlayer(1220): mContext is null, can't getMirrorDisplayStatus!!! 01-06 13:19:58.575: I/MediaPlayer(1220): setLPAflag() out 01-06 13:19:58.585: W/MediaPlayer(1220): info/warning (1, 902) 01-06 13:19:58.585: D/MediaPlayer(1220): [DLNA]contentType = 902 01-06 13:19:58.585: D/MediaPlayer(1220): doStart() in 01-06 13:19:58.590: D/MediaPlayer(1220): getIntParameter = 902 01-06 13:19:58.665: D/MediaPlayer(1220): Mediaplayer receives message, message type: 200 01-06 13:19:58.665: I/MediaPlayer(1220): Info (1,902) 01-06 13:19:58.665: D/MediaPlayer(1220): Mediaplayer receives message, message type: 5 01-06 13:19:58.665: D/MediaPlayer(1220): Mediaplayer receives message, message type: 1 01-06 13:19:58.745: E/(1220): file /data/data/com.nvidia.NvCPLSvc/files/driverlist.txt: not found! 01-06 13:19:58.745: I/(1220): Attempting to load EGL implementation /system/lib//egl/libEGL_tegra_impl 01-06 13:19:58.805: I/(1220): Loaded EGL implementation /system/lib//egl/libEGL_tegra_impl 01-06 13:19:58.905: I/(1220): Loading GLESv2 implementation /system/lib//egl/libGLESv2_tegra_impl 01-06 13:19:59.350: D/MediaPlayer(1220): Mediaplayer receives message, message type: 2 01-06 13:20:00.200: D/MediaPlayer(1220): release() in 01-06 13:20:00.210: D/MediaPlayer(1220): release() out 01-06 13:20:00.745: W/MediaPlayer-JNI(1220): MediaPlayer finalized without being released 01-06 13:20:00.745: I/dalvikvm-heap(1220): Grow heap (frag case) to 15.433MB for 3317776-byte allocation 01-06 13:20:40.855: D/View(1220): ACTION_DOWN before UnsetPressedState. invoking mUnsetPressedState.run() 01-06 13:20:40.870: I/Choreographer(1220): Skipped 1158 frames! The application may be doing too much work on its main thread. 01-06 13:20:43.810: E/SpannableStringBuilder(1220): SPAN_EXCLUSIVE_EXCLUSIVE spans cannot have a zero length 01-06 13:20:43.810: E/SpannableStringBuilder(1220): SPAN_EXCLUSIVE_EXCLUSIVE spans cannot have a zero length 01-06 13:20:43.975: E/SpannableStringBuilder(1220): SPAN_EXCLUSIVE_EXCLUSIVE spans cannot have a zero length 01-06 13:20:43.975: E/SpannableStringBuilder(1220): SPAN_EXCLUSIVE_EXCLUSIVE spans cannot have a zero length 01-06 13:20:45.150: E/SpannableStringBuilder(1220): SPAN_EXCLUSIVE_EXCLUSIVE spans cannot have a zero length 01-06 13:20:45.150: E/SpannableStringBuilder(1220): SPAN_EXCLUSIVE_EXCLUSIVE spans cannot have a zero length 01-06 13:21:40.920: D/Facebook-Util(1220): GET URL: https://graph.facebook.com/me?access_token=AAAFAqIQXNsUBAE18DxmYZCvB9uLEFUSeQEMp3hZASDnjOMllu1Q0BqSTYEoGVEvjZAp8l18eZCt8ZArlPwQ5A08SijSFF00imS2JDO0A9MAZDZD&amp;format=json 01-06 13:21:51.180: W/System.err(1220): android.os.NetworkOnMainThreadException &lt;--- at this point it fails 01-06 13:21:51.215: W/System.err(1220): at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1208) 01-06 13:21:51.215: W/System.err(1220): at java.net.InetAddress.lookupHostByName(InetAddress.java:388) 01-06 13:21:51.220: W/System.err(1220): at java.net.InetAddress.getAllByNameImpl(InetAddress.java:239) 01-06 13:21:51.220: W/System.err(1220): at java.net.InetAddress.getAllByName(InetAddress.java:214) 01-06 13:21:51.225: W/System.err(1220): at libcore.net.http.HttpConnection.&lt;init&gt;(HttpConnection.java:70) 01-06 13:21:51.225: W/System.err(1220): at libcore.net.http.HttpConnection.&lt;init&gt;(HttpConnection.java:50) 01-06 13:21:51.230: W/System.err(1220): at libcore.net.http.HttpConnection$Address.connect(HttpConnection.java:340) 01-06 13:21:51.230: W/System.err(1220): at libcore.net.http.HttpConnectionPool.get(HttpConnectionPool.java:87) 01-06 13:21:51.235: W/System.err(1220): at libcore.net.http.HttpConnection.connect(HttpConnection.java:128) 01-06 13:21:51.235: W/System.err(1220): at libcore.net.http.HttpEngine.openSocketConnection(HttpEngine.java:315) 01-06 13:21:51.240: W/System.err(1220): at libcore.net.http.HttpsURLConnectionImpl$HttpsEngine.makeSslConnection(HttpsURLConnectionImpl.java:461) 01-06 13:21:51.240: W/System.err(1220): at libcore.net.http.HttpsURLConnectionImpl$HttpsEngine.connect(HttpsURLConnectionImpl.java:433) 01-06 13:21:51.245: W/System.err(1220): at libcore.net.http.HttpEngine.sendSocketRequest(HttpEngine.java:289) 01-06 13:21:51.245: W/System.err(1220): at libcore.net.http.HttpEngine.sendRequest(HttpEngine.java:239) 01-06 13:21:51.250: W/System.err(1220): at libcore.net.http.HttpURLConnectionImpl.getResponse(HttpURLConnectionImpl.java:273) 01-06 13:21:51.255: W/System.err(1220): at libcore.net.http.HttpURLConnectionImpl.getInputStream(HttpURLConnectionImpl.java:168) 01-06 13:21:51.255: W/System.err(1220): at libcore.net.http.HttpsURLConnectionImpl.getInputStream(HttpsURLConnectionImpl.java:271) 01-06 13:21:51.255: W/System.err(1220): at com.facebook.android.Util.openUrl(Util.java:219) 01-06 13:21:51.260: W/System.err(1220): at com.facebook.android.Facebook.requestImpl(Facebook.java:806) 01-06 13:21:51.260: W/System.err(1220): at com.facebook.android.Facebook.request(Facebook.java:732) 01-06 13:21:51.265: W/System.err(1220): at com.celticwolf.alex.ShareOnFacebook.postToWall(ShareOnFacebook.java:81) 01-06 13:21:51.265: W/System.err(1220): at com.celticwolf.alex.ShareOnFacebook.share(ShareOnFacebook.java:68) 01-06 13:21:51.265: W/System.err(1220): at java.lang.reflect.Method.invokeNative(Native Method) 01-06 13:21:51.265: W/System.err(1220): at java.lang.reflect.Method.invoke(Method.java:511) 01-06 13:21:51.270: W/System.err(1220): at android.view.View$1.onClick(View.java:3603) 01-06 13:21:51.270: W/System.err(1220): at android.view.View.performClick(View.java:4101) 01-06 13:21:51.270: W/System.err(1220): at android.view.View$PerformClick.run(View.java:17078) 01-06 13:21:51.275: W/System.err(1220): at android.os.Handler.handleCallback(Handler.java:615) 01-06 13:21:51.275: W/System.err(1220): at android.os.Handler.dispatchMessage(Handler.java:92) 01-06 13:21:51.275: W/System.err(1220): at android.os.Looper.loop(Looper.java:155) 01-06 13:21:51.280: W/System.err(1220): at android.app.ActivityThread.main(ActivityThread.java:5485) 01-06 13:21:51.280: W/System.err(1220): at java.lang.reflect.Method.invokeNative(Native Method) 01-06 13:21:51.280: W/System.err(1220): at java.lang.reflect.Method.invoke(Method.java:511) 01-06 13:21:51.285: W/System.err(1220): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1028) 01-06 13:21:51.285: W/System.err(1220): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:795) 01-06 13:21:51.285: W/System.err(1220): at dalvik.system.NativeStart.main(Native Method) </code></pre> <p>Thank You!</p>