There are several glyphs with a lot of nodes. Adding subroutines can take a long time, then.
just a little cartoon character, 3131 points?
I’m saving as OTF but TTF gets the same error
I already cleaned up extrema and tidy’d up paths
I made a square in its place, and output the font with no problem. So the complexity is the issue.
If I want to make a 10-glyph font with little drawings, is Glyphs not my best bet?
edit: got it down to 1750 points and still get the error message. 
Font technology is not optimized for this kind of drawing. But there are ways.
The number one problem is that you have many small curves. There are plug-ins for reducing small curves to straight lines, and a plug-in for deleting short segments. Try those first, then add a custom parameter called Disable Subroutines.
Read more about it in this tutorial:
Thank you mekkablue, i will try that
that worked, thanks again!
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