Unrecognized method. (irritants: setBigDefaultText)

App runs in Android, but with iOS: I get
error: unrecognized method. (irritants: setBigDefaultText)
Any ideas?

None, you do not show where the error is coming from....

Welcome Andreas.

It appears setting
bigdefaulttext

** on the Screen Designer Properties does not work with ios Projects** Andreas. It appears you discovered a bug.

Try using the setting on an Android device or the emulator. The error will probably disappear.

Thank you for reporting this.

Thanks!
The same happens with HighContrast. (It works after deselection.)

I wouldn't say it's a bug, rather it's just not implemented yet per doesappinventorrunonios.com. The feature in question was added after the iOS companion was accepted to the App Store and will be implemented in a future release.