When i execute Start Nuxeo.command to install Nuxeo Platform, i can´t do.

Don´t appear the Nuxeo Control Panel. This is the information that show in the terminal console:

sh-3.2# exec ./nuxeoctl gui start
Launcher command: /System/Library/Frameworks/JavaVM.framework/Versions/Current/Commands/java -Dlauncher.java.opts=-server -Xms512m -Xmx1024m -XX:MaxPermSize=512m -Dsun.rmi.dgc.client.gcInterval=3600000 -Dsun.rmi.dgc.server.gcInterval=3600000 -Dfile.encoding=UTF-8 -Djava.net.preferIPv4Stack=true -Dnuxeo.home=/Users/Administrador/Downloads/nuxeo-cap-5.5-tomcat -Dnuxeo.conf=/Users/Administrador/Downloads/nuxeo-cap-5.5-tomcat/bin/nuxeo.conf -Dnuxeo.log.dir=/Users/Administrador/Downloads/nuxeo-cap-5.5-tomcat/log -jar /Users/Administrador/Downloads/nuxeo-cap-5.5-tomcat/bin/nuxeo-launcher.jar gui start
Exception in thread "main" java.lang.UnsupportedClassVersionError: Bad version number in .class file
    at java.lang.ClassLoader.defineClass1(Native Method)
    at java.lang.ClassLoader.defineClass(ClassLoader.java:676)
    at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124)
    at java.net.URLClassLoader.defineClass(URLClassLoader.java:260)
    at java.net.URLClassLoader.access$100(URLClassLoader.java:56)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:195)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:317)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:280)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
    at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:375)