title: Mac Appcelerator Studio: An error has occurred
body: <p>When trying to run Appcelerator Studio getting this error
  <a href="https://i.stack.imgur.com/9uYaR.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/9uYaR.jpg" alt="error alert"></a></p>
  
  <p>Ive tried to reinstall Studio with all libraries and caches, nothing works.</p>
  
  <p>OSX 10.10.4 (14E46)
  Java 8 Update 60</p>
  
  <p><strong>An error has occurred.
  See the log file</strong>
  ~/Appcelerator_Studio_Workspace/.metadata/.log.</p>
  
  <p><div class="snippet" data-lang="js" data-hide="true" data-console="false" data-babel="false">
  <div class="snippet-code snippet-currently-hidden">
  <pre class="snippet-code-js lang-js prettyprint-override"><code>!SESSION 2015-08-20 19:53:03.688 -----------------------------------------------
  eclipse.buildId=unknown
  java.version=1.9.0-ea
  java.vendor=Oracle Corporation
  BootLoader constants: OS=macosx, ARCH=x86_64, WS=cocoa, NL=ru_RU
  Framework arguments:  -keyring /Users/user/.eclipse_keyring -showlocation
  Command-line arguments:  -os macosx -ws cocoa -arch x86_64 -keyring /Users/user/.eclipse_keyring -consoleLog -showlocation
  
  !ENTRY org.eclipse.core.resources 2 10035 2015-08-20 19:53:05.671
  !MESSAGE The workspace exited with unsaved changes in the previous session; refreshing workspace to recover changes.
  
  !ENTRY org.eclipse.core.net 1 0 2015-08-20 19:53:06.419
  !MESSAGE System property http.nonProxyHosts has been set to local|*.local|169.254/16|*.169.254/16 by an external source. This value will be overwritten using the values from the preferences
  
  !ENTRY org.eclipse.osgi 4 0 2015-08-20 19:53:17.256
  !MESSAGE Application error
  !STACK 1
  java.lang.NoClassDefFoundError: org/w3c/dom/stylesheets/StyleSheetList
   at java.lang.ClassLoader.defineClass1(Native Method)
   at java.lang.ClassLoader.defineClass(ClassLoader.java:759)
   at org.eclipse.osgi.internal.loader.ModuleClassLoader.defineClass(ModuleClassLoader.java:272)
   at org.eclipse.osgi.internal.loader.classpath.ClasspathManager.defineClass(ClasspathManager.java:632)
   at org.eclipse.osgi.internal.loader.classpath.ClasspathManager.findClassImpl(ClasspathManager.java:588)
   at org.eclipse.osgi.internal.loader.classpath.ClasspathManager.findLocalClassImpl(ClasspathManager.java:540)
   at org.eclipse.osgi.internal.loader.classpath.ClasspathManager.findLocalClass(ClasspathManager.java:527)
   at org.eclipse.osgi.internal.loader.ModuleClassLoader.loadClass(ModuleClassLoader.java:160)
   at java.lang.ClassLoader.loadClass(ClassLoader.java:356)
   ... 44 more
  
  !ENTRY org.eclipse.core.jobs 2 2 2015-08-20 19:53:17.680
  !MESSAGE Job found still running after platform shutdown.  Jobs should be canceled by the plugin that scheduled them during shutdown: com.aptana.usage.internal.DefaultAnalyticsEventHandler$1</code></pre>
  </div>
  </div>
  </p>