Problem Solved :Java errors when Matlab starts

Hi all, I was/am getting some errors when matlab starts. I tried to resolve this by uninstalling Matlab, and installing it from scratch. I unistalled all Java platforms, and installed them again. I have also installed the SDK compiler suggested by Matlab. (This fixed simulink issues which was not working at all..now it does.)

However, it did not solve the Java errors... I would really appreciate your help, if you had any similar issue. I am attaching the errors below:

Best regards, M

SOLUTION (as suggested by matlab support) : Install Matlab and Simulink report generators

   Toolbox Path Cache read in 0.02 seconds.
  MATLAB Path initialized in 0.41 seconds.
  ERROR: Error starting reference:file:/C:/Program Files/MATLAB/R2012a/java/jar/toolbox/rptgenslxmlcomp.jar (org.osgi.framework.BundleException: Activator start error in bundle com.mathworks.toolbox.rptgenslxmlcomp [10].)
  java.lang.NoClassDefFoundError: com/mathworks/toolbox/rptgenxmlcomp/plugin/ComparisonRulesProvider
    at com.mathworks.toolbox.rptgenslxmlcomp.plugin.ComparisonPluginSLXMLComp.addComparisonTypes(ComparisonPluginSLXMLComp.java:26)
    at com.mathworks.toolbox.rptgenslxmlcomp.plugin.ComparisonPluginSLXMLComp.addKnownComponents(ComparisonPluginSLXMLComp.java:22)
    at com.mathworks.toolbox.rptgenslxmlcomp.plugin.ComparisonPluginSLXMLComp.<init>(ComparisonPluginSLXMLComp.java:14)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
    at java.lang.reflect.Constructor.newInstance(Unknown Source)
    at java.lang.Class.newInstance0(Unknown Source)
    at java.lang.Class.newInstance(Unknown Source)
    at com.mathworks.util.osgi.ServicesActivator.registerServicePair(ServicesActivator.java:58)
    at com.mathworks.util.osgi.ServicesActivator.parseServices(ServicesActivator.java:38)
    at com.mathworks.util.osgi.ServicesActivator.start(ServicesActivator.java:33)
    at org.apache.felix.framework.util.SecureAction.startActivator(SecureAction.java:589)
    at org.apache.felix.framework.Felix.startBundle(Felix.java:1458)
    at org.apache.felix.framework.Felix.setActiveStartLevel(Felix.java:984)
    at org.apache.felix.framework.StartLevelImpl.run(StartLevelImpl.java:263)
    at java.lang.Thread.run(Unknown Source)
  Caused by: java.lang.ClassNotFoundException: com.mathworks.toolbox.rptgenxmlcomp.plugin.ComparisonRulesProvider
    at java.net.URLClassLoader$1.run(Unknown Source)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at java.lang.ClassLoader.loadClassInternal(Unknown Source)
    ... 17 more

Answer 1

[Kapil Nagwanshi]

Try to use matlab in basic (32bit)/Classic theme, if you are using a windows 7 os (Go to desktop right click->personalize->theme -> windows classic-Apply). Good Luck

Answer 2

[Heber Farnsworth]

Same problem for me with 2013b and windows 7 enterprise (sp1). Changing the theme didn't help though. This is a brand new system and brand new installation.