Brute Force on WPA/WPA2

[qwerty]

Hi. I have problem with brute-force on hashcat-gui.
When i was select hccap file and select brute-force (WPA/WPA) command is:

cudaHashcat-plus64.exe --hash-type 2500 --attack-mode 3 C:\Users\qwerty\Desktop\9018_1346010557.hccap

show me this error:

Usage: /\cudaHashcat-plus.exe [options]... hash|hashfile|hccapfile [dictionary|mask|directory]...
Try --help for more help.

What is wrong?
What is correct specify a mask?