title: Create CNPostalAddress from known values
body: <p>I am trying to create a <code>CNPostalAddress</code> with some strings in Objective-C. I have street address, city, state, zip and country values. I have tried the code below but it’s not working. Thanks for your valuable time. </p>
  
  <pre><code>CNPostalAddress *postalAddr = [[CNPostalAddress alloc] init];
  postalAddr.street = [NSString stringWithFormat:@"%@ %@",street1,street2];// here, I am getting an error: Street property is read only.
  </code></pre>