title: Unable to set project SDK in Intellij
body: <p>I was earlier running my project using Java 1.7 but now I have to upgrade it to version 1.8. I have it installed as an alternative installation on my CentOS.<br> The location of Java8 is at <code>/opt/jdk1.8.0_25/</code> and the current Java is at <code>/usr/java/jdk1.7.0_67/</code>. My system's <code>JAVA_HOME</code> also points to <code>/usr/java/jdk1.7.0_67/</code>.<br><br>
  As soon as I add the new SDK I get this error: <code>Cannot Save Settings: Please specify a different SDK name</code>.</p>
  
  <p>How should I solve this issue?</p>