What does this error mean?

I'm doing an arduino program for school... i keep getting this error message:how can I solve it?

Luci_F1_random_con_transistor_5_su_5_con_pulsante.ino: In function 'void loop()':
Luci_F1_random_con_transistor_5_su_5_con_pulsante.ino:23:34: error: too few arguments to function 'void digitalWrite(uint8_t, uint8_t)'
In file included from Luci_F1_random_con_transistor_5_su_5_con_pulsante.ino:1:0:
C:\Program Files (x86)\Arduino\hardware\arduino\avr\cores\arduino/Arduino.h:126:6: note: declared here
void digitalWrite(uint8_t, uint8_t);

You could try adding some more arguments to digitalWrite, in the code you didn't post.

digialWrite() takes 2 arguments. The first is the Arduino pin number and the second is the state to set the pin to, usually HIGH or LOW

Post your code if you cannot see the problem with it.