CertifyKeyActivity sets error if no key is selected

OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/SelectSecretKeyLayoutFragment.java

@@ -119,8 +119,8 @@ public class SelectSecretKeyLayoutFragment extends Fragment {
     }
 
     public void setError(String error) {
-        mKeyUserId.requestFocus();
-        mKeyUserId.setError(error);
+        mNoKeySelected.requestFocus();
+        mNoKeySelected.setError(error);
     }
 
     /**