iOS Playground not running at all

After failing on macOS Mojave I downloaded macOS High Sierra on a partition an d the problem persist using Xcode 9.4.1 and Xcode 10 beta 4. Here is an screenshoot. https://imgur.com/jDNpZnz


Any help on the problem will be awsome, Thanks.

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For everything you need to know about why you should never bother adding screenshots here, see For Best Results - Read the Label

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