It looks as if you did not completely compile your code. Some compilers, like microfocus, for example, allow you to have have two steps in compilation. You can, using options, tell it where to stop compiling.

If you set a -c option it tells the compiler to create an object file (myfile.o)
Which is what you seem to be trying to run. .o cannot be loaded. Only executable image files can be loaded and run.

What compiler