title: Starting R statet in Mac Os
body: <p>My Operating System is Mac OS Lion</p>
  
  <p>When i start R in eclipse (after successfully installing statet, and in R and bash the packages "rjava, rj and rj-gd") i still get the error message in the picture.<img src="https://i.stack.imgur.com/Zu1UT.png" alt="error"></p>
  
  <p>in ecipse.ini i have specifed a vm i.e.e</p>
  
  <pre><code>-vm
  /usr/bin/java
  </code></pre>
  
  <p>The the error log has the following lines. Any help will be appreciated</p>
  
  <pre><code>Launching the R Console was cancelled, because it seems starting the R engine failed. 
  Please make sure that R package 'rj' (0.5.5 or compatible) is installed and that the R library paths are set correctly for the R environment configuration 'R'.
  Process Error Log:
  Nov 17, 2011 4:26:41 PM de.walware.rj.server.RMIServerControl start
  INFO: [Control:rjs-local-1321543599373] initialize server...
  Nov 17, 2011 4:26:41 PM de.walware.rj.server.srvImpl.AbstractServerControl initREngine
  SEVERE: [Control:rjs-local-1321543599373] init JRI/Rengine failed.
  java.lang.NoClassDefFoundError: de/walware/rj/server/dbg/TracepointListener
      at java.lang.ClassLoader.defineClass1(Native Method)
      at java.lang.ClassLoader.defineClassCond(ClassLoader.java:631)
      at java.lang.ClassLoader.defineClass(ClassLoader.java:615)
      at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)
      at java.net.URLClassLoader.defineClass(URLClassLoader.java:283)
      at java.net.URLClassLoader.access$000(URLClassLoader.java:58)
      at java.net.URLClassLoader$1.run(URLClassLoader.java:197)
      at java.security.AccessController.doPrivileged(Native Method)
      at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
      at de.walware.rj.server.jri.loader.JRIClassLoader.findClass(JRIClassLoader.java:514)
      at de.walware.rj.server.jri.loader.JRIClassLoader.loadRJavaClass(JRIClassLoader.java:746)
      at de.walware.rj.server.jri.loader.JRIServerLoader.loadServer(JRIServerLoader.java:82)
      at de.walware.rj.server.srvImpl.AbstractServerControl.initREngine(AbstractServerControl.java:145)
      at de.walware.rj.server.RMIServerControl.start(RMIServerControl.java:104)
      at de.walware.rj.server.RMIServerControl.main(RMIServerControl.java:41)
  Caused by: java.lang.ClassNotFoundException: de.walware.rj.server.dbg.TracepointListener
      at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
      at java.security.AccessController.doPrivileged(Native Method)
      at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
      at de.walware.rj.server.jri.loader.JRIClassLoader.findClass(JRIClassLoader.java:514)
      at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
      at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
      ... 15 more
  </code></pre>