jdeveloper 11.1.2

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dear all

i created menu 
but when i click on some navigation items  to go to page i define on this item .its not respond to page and just do refresh in same page 
what the problem  ؟
 

 

 there is something i not made when i created task Flow .That when  i created "control flow case" i not write any something in "from outcome "property