xcode device debugging error, Could not launch "*"

First, the real machine debugging process and issues:
1 My works are generated stuff, not compiled in the simulator, only connect ipad to compile.


(2) After the success will prompt the following error, the compiled program can not be ported to the ipad.


Second, tried methods:
1 is one of my certificate, a certificate is only bound to one application, this can be determined.
2 Remove build and associated files, restart Xcode, still unsuccessful.

Third, the existence of doubts:
1 This upper left corner of the generated exec applications and programs can run on the simulator What is the difference? What kind of things? I read the source code, all using c language.
2 Such exec application, how to run?

Reply:
Under his own answer:
exec is an executable file, not a real machine debugging. Usually in the terminal operation.