That's a common mantra among those that say that they want to leap, but haven't, and aren't, and won't.
What they're actually saying is, "I don't have any ideas that are guaranteed to work, and not only that, are guaranteed to cause no criticism or moments when I'm sure the whole thing is going to fall apart."
And that sentence is probably true.
But no good ideas? C'mon.
Here's a simple hack that takes whatever word you put in the seed box and comes up with a fresh game idea you've never had before. And it can do it over and over and over again. Pretty good ideas are easy. The guts and persistence and talent to create, ship and stick it out are what's hard.
At least you know what's holding you back. The good news is that those skills are available to anyone who cares enough to acquire them.