The Run and Debug menu items appear in the C/C++ perspective by default, but they may not appear in all perspectives. You'll need the  menu item to set up a launch configuration. 
            
            
            
          
         
         
         To include the menu item into your current perspective:
         
         
         
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               From the main menu, select .
               
            
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               Select the Commands tab. 
               
            
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               Select the Launch checkbox in the Available command groups list if it is not currently selected for you. 
               
               
               
                    
 
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               Click OK.