my codes will not compile to pro mini

So I pasted the current blink code to a new file, tried to compile and

error message as follows :

Arduino: 1.8.5 (Windows 10), Board: "Arduino Pro or Pro Mini, ATmega328P (5V, 16 MHz)"

c:/program files (x86)/arduino/hardware/tools/avr/bin/../lib/gcc/avr/4.9.2/../../../../avr/lib/avr5/crtatmega328p.o:(.init9+0x0): undefined reference to `main'

collect2.exe: error: ld returned 1 exit status

exit status 1
Error compiling for board Arduino Pro or Pro Mini.

This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.

when I get down the list to the /bin/.. etc on my sreen there a list of files but differentthan I have been used to viewing, not sure where after the bin file to go as it is listed as ..

thanks for your time