Where do I increase tolerances?

I tried to do a Boolean Difference using two solids and got a message saying that I needed to double my current tolerances in order to accomplish that. When I go up to the help bar I get a message that No Results Were Found.

In Options, Units

Well if you see that message, doesn’t that mean it DID the boolean already and gave you that warning? When it does happen, I would take a look at what’s going on to see why it did that and if there isn’t something that could be done to make it work more cleanly.

It’s been a while since I’ve seen a message about doubling tolerance, but my recollection is either the software has already doubled the tolerance or is asking if it is okay to do so. No need to change tolerance settings in Options > Units.

Thanks to everyone. Everything did work. I was just frustrated with the file.