title: The method builder() is undefined for the type BuilderExample
body: <pre><code>package ee;
  import lombok.Builder;
  @Builder
  public class BuilderExample {
          public String foo;
          public String ha;
  }
  
  package ee;
  import ee.BuilderExample ;
  public class Main{
  public static void main(String a[]){
  BuilderExample b=BuilderExample.builder().foo("hi").ha("anything").build();
  }}
  </code></pre>
  
  <p>In this code it shows an error The method builder() is undefined for the type BuilderExample
  Exception in thread "main" java.lang.Error: Unresolved compilation problem: 
      The method builder() is undefined for the type BuilderExample
  showing an error like this why?  </p>