beCPG PLM Community

I have deployed the Model Designer into my Alfresco Community v4.2.0 on MAC OS X 10.7.5. When trying to submit any changes (publishing works) to elements I get the follwowing error message. There is supposedly no fault with the Model Designer installation, but perhaps with my server configuration, Apache Tomcat. As I am not skilled at all with this, could someone perhaps guide me?

Regards,
Jim

{
    "status" : 
  {
    "code" : 500,
    "name" : "Internal Error",
    "description" : "An error inside the HTTP server which prevented it from fulfilling the request." 
  },  

  "message" : "10070001 No reader registered for \"application\/x-www-form-urlencoded\"",  
  "exception" : "org.springframework.extensions.webscripts.WebScriptException - 10070001 No reader registered for \"application\/x-www-form-urlencoded\"",

  "callstack" : 
  [ 
        ""      ,"org.springframework.extensions.webscripts.WebScriptException: 10070001 No reader registered for \"application\/x-www-form-urlencoded\"" 
      ,"org.springframework.extensions.webscripts.AbstractWebScript.getExecuteScript(AbstractWebScript.java:607)" 
      ,"org.springframework.extensions.webscripts.DeclarativeWebScript.execute(DeclarativeWebScript.java:75)" 
      ,"org.alfresco.repo.web.scripts.RepositoryContainer$3.execute(RepositoryContainer.java:429)" 
      ,"org.alfresco.repo.transaction.RetryingTransactionHelper.doInTransaction(RetryingTransactionHelper.java:433)" 
      ,"org.alfresco.repo.web.scripts.RepositoryContainer.transactionedExecute(RepositoryContainer.java:491)" 
      ,"org.alfresco.repo.web.scripts.RepositoryContainer.transactionedExecuteAs(RepositoryContainer.java:529)" 
      ,"org.alfresco.repo.web.scripts.RepositoryContainer.executeScript(RepositoryContainer.java:345)" 
      ,"org.springframework.extensions.webscripts.AbstractRuntime.executeScript(AbstractRuntime.java:377)" 
      ,"org.springframework.extensions.webscripts.AbstractRuntime.executeScript(AbstractRuntime.java:209)" 
      ,"org.springframework.extensions.webscripts.servlet.WebScriptServlet.service(WebScriptServlet.java:118)" 
      ,"javax.servlet.http.HttpServlet.service(HttpServlet.java:722)" 
      ,"org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)" 
      ,"org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)" 
      ,"org.alfresco.web.app.servlet.GlobalLocalizationFilter.doFilter(GlobalLocalizationFilter.java:61)" 
      ,"org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)" 
      ,"org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)" 
      ,"org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)" 
      ,"org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)" 
      ,"org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)" 
      ,"org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168)" 
      ,"org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)" 
      ,"org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:929)" 
      ,"org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)" 
      ,"org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)" 
      ,"org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1002)" 
      ,"org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:585)" 
      ,"org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312)" 
      ,"java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)" 
      ,"java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)" 
      ,"java.lang.Thread.run(Thread.java:722)" 

  ],

  "server" : "Community v4.2.0 (4480) schema 6 020",
  "time" : "2012-nov-07 23:09:01" 
}