title: Google app engine project deployment error with java sdk
body: <p>I'm trying to run a google app engine project. First i run that with a servlet and worked fine. now i add a .jsp file and then get a error </p>
  
  <blockquote>
    <p>Unable to update app: Cannot get the System Java Compiler. Please use a JDK, not a JRE.
    See the deployment console for more details
    Unable to update app: Cannot get the System Java Compiler. Please use a JDK, not a JRE.
    I couldn't fix that.Please help me. </p>
  </blockquote>