The context of the following conversation is Austin could not get the machine to work, so Austin abandoned the plan altogether.:
Austin says I think I have to think of a new plan..
The friend responds What's wrong with your current plan?.
Austin responds It hinges on this machine, and I can't just get it to work..
The friend responds Ah okay I see.
Austin responds Yeah, I can't use this plan, it's over..
The friend responds Hopefully your new plan will be better..