Can you maybe provide the number where you are calling? Or is to the regular customer support?
Magge
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I actually made it work now. My fault was, that I have overseen one UIColor definition in which I got color from the asset catalog. However, as already mentioned by @kemalenver, that is not possible. After changing this, I do not get any further errors.
Yes, I tried multiple times. Nevertheless, thanks for the fast reply!