title: What is a NoSuchBeanDefinitionException and how do I fix it?
body: <p>Please explain the following about <code>NoSuchBeanDefinitionException</code> exception in Spring:</p>
  
  <ul>
  <li>What does it mean?</li>
  <li>Under what conditions will it be thrown?</li>
  <li>How can I prevent it?</li>
  </ul>
  
  <hr>
  
  <p><em>This post is designed to be a comprehensive Q&amp;A about occurrences of <code>NoSuchBeanDefinitionException</code> in applications using Spring.</em></p>