This SO article was helpful for me:
<a href="https://stackoverflow.com/questions/56138193/constraint-items-must-each-be-a-view-or-layout-guide" class="autolinkedURL autolinkedURL-url" target="_blank">stackoverflow.com/questions/56138193/constr..</a>
However I couldn&#39;t figure out the difference between which <code>attribute</code> to use and the <code>relatedBy</code>.
With normal constraints I got the result I wanted.
But I couldn&#39;t define the correct <code>NSLayoutConstraintAttribute</code>.
<pre><code>let topConstraint = NSLayoutConstraint(item: bottomLabel,
 attribute: .top,
 relatedBy: .equal,
 toItem: topLabel,
 attribute: .bottom,
 multiplier: 1,
 constant: 0)
myStackView.addConstraint(topConstraint)
</code></pre>

This SO article was helpful for me:
https://stackoverflow.com/questions/56138193/constraint-items-must-each-be-a-view-or-layout-guide

However I couldn't figure out the difference between which `attribute` to use and the `relatedBy`.

With normal constraints I got the result I wanted.
But I couldn't define the correct `NSLayoutConstraintAttribute`.

```
let topConstraint = NSLayoutConstraint(item: bottomLabel,
                                               attribute: .top,
                                               relatedBy: .equal,
                                               toItem: topLabel,
                                               attribute: .bottom,
                                               multiplier: 1,
                                               constant: 0)
myStackView.addConstraint(topConstraint)
```

Constraining stackviews

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Before making the switch to development, I was a strategist and GM in the tech space.
