Two things to check first: 1- your code compiles and generates an executable. 2- Your run configuration is setup correctly.
1 you should be able to figure out form the Console or Problems tab.
2 Select Run->Run Configurations... from the menu. make sure under the Project tab that the "ELF file name" text edit has the correct executable. The upper banner of the Run Configurations dialog should tell you if you have something wrong...
