Could not generate as Variable font

There a text appears as “Can’t convert to compatible TrueType curves.” “Glyph ‘dollar’ is not compatible”. I had tried several ways from the old forums but it still doesn’t work. My Glyphs version is up-to-date and I am using Mac OS High Sierra Version 10.13.6. Thank you for your answer

Are you using the very latest beta version? Go to Glyphs > Preferences > Updates, activate both checkboxes and press the Update button.

Also make sure you have the Enforce Compatibility Check parameter in Font Info > Font.

Thank you for a very quick response. 1. My version is already updated. 2.I could not find the Enforce Compatibilities Check" .

If you click in New Parameter, and start typing Enf… it should autocomplete.

If it doesn’t, please verify the app build number again (Glyphs > About Glyphs): is it 1218?

I already followed your instructions, tick the check-box, but still it appears the same error (attached photo)
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this is my ‘dollar’ glyph. there is a red line but I really don’t know how to get rid of it tho.

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Well, the glyph as it is now, is not compatible. Please read through this tutorial:
https://glyphsapp.com/tutorials/multiple-masters-part-2-keeping-your-outlines-compatible

And here on how to set up the bracket trick properly, because I assume this is what you want to do with the dollar:
https://glyphsapp.com/tutorials/alternating-glyph-shapes

Hi Mekkablue,

Thank you for your help. I already did try using instruction you sent but then it still appeared the same error tho. I don’t know what did I do wrong about it.

Please read the tutorial. You are trying to interpolate 3 outlines with one. That is not possible.