title: Error while importing Liferay lar project
body: <p>I am using liferay to develop a website.
  In Site Administration, under Site Pages, I am trying to import a .lar file.
  I selected the lar file and then when I click on import after following the steps, the import is failed and the error message that I get is :</p>
  
  <p>An unexpected error occurred with the publication process. Please check your portal and publising configuration.
  com.liferay.portlet.journal.DuplicateArticleIdException</p>
  
  <p>I have tried importing the lar file several times but I get this same error message evrytime</p>
  
  <p>What is the cause for this and what should be done?</p>