title: intellij idea - Error: java: invalid source release 1.9
body: <p>I'm trying to run my JSQL parser class, but I'm getting <code>Error: java: invalid source release 1.9</code>. </p>
  
  <p>I tried to following <a href="https://stackoverflow.com/a/42650624/7327018">this answer</a>. I changed File> Build,Execution,Deployment> Java Compiler> Project bytecode version: 1.8.  However, I can't change the Module language level and Project language level to 1.8 because there's not option for that. I still get the same error below.</p>
  
  <p><strong>Error</strong>
  <a href="https://i.stack.imgur.com/XlBuf.png" rel="noreferrer"><img src="https://i.stack.imgur.com/XlBuf.png" alt="enter image description here"></a></p>
  
  <p><strong>Code</strong></p>
  
  <pre><code>package cs4321.project2;
  
  import java.io.FileReader;
  import net.sf.jsqlparser.parser.CCJSqlParser;
  import net.sf.jsqlparser.statement.Statement;
  import net.sf.jsqlparser.statement.select.Select;
  
  public class Parser {
      private static final String queriesFile = "resources/input/queries.sql";
  
      public static void main(String[] args) {
          try {
              CCJSqlParser parser = new CCJSqlParser(new FileReader(queriesFile));
              Statement statement;
              while ((statement = parser.Statement()) != null) {
                  System.out.println("Read statement: " + statement);
                  Select select = (Select) statement;
                  System.out.println("Select body is " + select.getSelectBody());
              }
          } catch (Exception e) {
              System.err.println("Exception occurred during parsing");
              e.printStackTrace();
          }
      }
  }
  </code></pre>