Burning Bootloader on ATTiny 45 with Arduino Mega2560

Hi

I'm using a Arduino mega ISP 1.6.7. In the hardware folder I installed the attiny-ide-1.6.x.zip.
wiring is checked triple.
when starting burning the bootloader I receive the message:
"avrdude: Yikes! Invalid device signature. Double check connections and try again, or use -F to override this check."

What does that mean, where do I have to use -F

Thanks a lot for any support.

Problem solved,

I tried it with version 1.6.4 and everything is fine.

Seriously? That was the solution? I've been having this issue.. so I should just downgrade from my 1.6.9 to 1.6.4 and all should be good?

N-Tracker:
"avrdude: Yikes! Invalid device signature. Double check connections and try again, or use -F to override this check."

That generally means that either you failed to disable the auto-reset on your ISP Arduino or your target processor is not the right type for the Arduino board you selected. To disable auto-reset on the ISP Arduino, add a 10uF capacitor to the ISP Arduino with the positive side of the capacitor going to Reset and the negative side of the capacitor going to Ground.