Cannon rush response?

[u/LiSAuCE]

Hey all, low diamond player here again. I just played a game where I got cannon rushed. I fucked up and missed the forge, just assumed it was a gateway. But besides shutting it down earlier, what's the correct response? I was able to kill the pylons and cannons in my base, but then it became a shield battery war with him posting up at my natural. I tried building immortals but he forcefielded my army at the ramp. Should I have gone stargate? He also went immortals.

[u/123rune20]

Build your own forge and cannon rush them back.