title: How to open existing android project(build.gradle) into android studio
body: <p>I am new to <code>Android Studio</code>.I have an existing android project which was build from android studio. now I need to <code>open</code> that  project from build.grade(that project's file)file.I followed this step 
  <strong>File-->Open-->build.gradle(from that existing project)</strong><br>
  But it shows the processing window as below image for so Long time doesn't responding well. </p>
  
  <p>So any one have idea about this please help me.</p>
  
  <p><img src="https://i.stack.imgur.com/vXKNA.png" alt="enter image description here"></p>