Invalid version string "4.x.x" + Laravel
<p>I am trying to install the "Asgardcms/Platform" package to Laravel 5.2.</p>

<p>I found error while installing this package</p>

<pre><code>[RuntimeException]                                                           
  Could not load package intervention/image in http://packagist.org: [Unexpec  
  tedValueException] Could not parse version constraint 4.x.x: Invalid versio  
  n string "4.x.x" 

 [UnexpectedValueException]                                                
  Could not parse version constraint 4.x.x: Invalid version string "4.x.x" 
</code></pre>

<p>How can I resolve the issue?</p>