title: Treewalker Exception, Eclipse
body: <p>I worked on a project using eXistdb. XML Java API, etc. After that anytime I try to create dynamic web prj in eclipse I get this error. When I want to create a new server instance I get this. Please help!!! Or I should completely change my path to a C# programmer using Visual Studio because I am facing this error for a long time. I installed new eclipse, tomcat server it didn't go away!</p>
  
  <p>"The selected wizard could not be started.
  Plug-in "org.eclipse.jst.servlet.ui" was unable to instantiate class "org.eclipse.jst.servlet.ui.project.facet.WebProjectWizard".
  org/apache/xml/serializer/TreeWalker"</p>
  
  <p>Thanks in advanced. </p>
  
  <p>NOTE: It is not tomcat's problem, I installed new eclipse, created new workspace, installed new JRE, stil I am able to create a java project, but when I create a class it gives me </p>
  
  <p>An internal error occurred during: "Task List Save Job".
  org/apache/xml/serializer/TreeWalker</p>
  
  <p>The second error is :
  Could not save master table to file 'C:\Users\SaraS\Desktop\solve.metadata.plugins\org.eclipse.core.resources.safetable\org.eclipse.core.resources'.
  C:\Users\SaraS\Desktop\solve.metadata.plugins\org.eclipse.core.resources.safetable\org.eclipse.core.resources (The system cannot find the path specified)</p>
  
  <p>Plz note that solve is my workspace name. Help!</p>
  
  <p>Update: I installed new JRE, so now I am able to create a dynamic web project then create a class. But when I want to run the tomcat server I again get the first mentioned error!</p>