title: How to set the elements of NSMutableArray to UILabel in Objective-C?
body: <p>I am new to IOS. I have set the data into <code>NSMutableArray</code>. I want to get the <code>elements</code> of <code>NSMutableArray</code> and set it to the <code>UILabel</code> like the following.</p>
  
  <pre><code>self.RedValue.text = [LEDstate objectAtIndex:0];
  </code></pre>
  
  <p>But it crash for following reason:</p>
  
  <p><strong><code>2015-03-04 19:01:24.384 BLE_Running[1610:870444] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[__NSCFNumber isEqualToString:]: unrecognized selector sent to instance 0x14561760'</code></strong></p>
  
  <p><strong>How to set the elements of NSMutableArray to UILabel in Objective-C ?</strong></p>