Breaking NSConstraint error with “null” property
Basically I have a vertical UIStackView filled with container views.
I am seeing null properties(?) on the container views
"NSLayoutConstraint:0x600000c3ed50 UICollectionView:0x7f954c871000.leading == UIView:0x7f954c5a5330.(null)"
what is this constraint trying to compare to? There are other properties from this address(0x7f954c5a5330) that aren't null (.trailing, .left, .width, etc), how can I resolve this?
I'm guessing that constraints would break only when the container view is hidden, but I'm not sure.
Full output as below:
"<NSLayoutConstraint:0x600000c3ed50 UICollectionView:0x7f954c871000.leading == UIView:0x7f954c5a5330.(null)>",
"<NSLayoutConstraint:0x600000c3edf0 UIView:0x7f954c5a5330.trailing == UICollectionView:0x7f954c871000.trailing>",
"<NSLayoutConstraint:0x600000c3b7a0 UIView:0x7f954c5a5330.width == 0>",
"<NSLayoutConstraint:0x600000c3f0c0 UILayoutGuide:0x6000016d9960.left == UIView:0x7f954c5a5330.left + 20>"
Will attempt to recover by breaking constraint
<NSLayoutConstraint:0x600000c3ed50 UICollectionView:0x7f954c871000.leading == UIView:0x7f954c5a5330.(null)>
ios autolayout nslayoutconstraint uistackview
asked Nov 27 '18 at 14:24
Ray TsoRay Tso
302614
add a comment |
Basically I have a vertical UIStackView filled with container views.
I am seeing null properties(?) on the container views
"NSLayoutConstraint:0x600000c3ed50 UICollectionView:0x7f954c871000.leading == UIView:0x7f954c5a5330.(null)"
what is this constraint trying to compare to? There are other properties from this address(0x7f954c5a5330) that aren't null (.trailing, .left, .width, etc), how can I resolve this?
I'm guessing that constraints would break only when the container view is hidden, but I'm not sure.
Full output as below:
"<NSLayoutConstraint:0x600000c3ed50 UICollectionView:0x7f954c871000.leading == UIView:0x7f954c5a5330.(null)>",
"<NSLayoutConstraint:0x600000c3edf0 UIView:0x7f954c5a5330.trailing == UICollectionView:0x7f954c871000.trailing>",
"<NSLayoutConstraint:0x600000c3b7a0 UIView:0x7f954c5a5330.width == 0>",
"<NSLayoutConstraint:0x600000c3f0c0 UILayoutGuide:0x6000016d9960.left == UIView:0x7f954c5a5330.left + 20>"
Will attempt to recover by breaking constraint
<NSLayoutConstraint:0x600000c3ed50 UICollectionView:0x7f954c871000.leading == UIView:0x7f954c5a5330.(null)>
ios autolayout nslayoutconstraint uistackview
asked Nov 27 '18 at 14:24
Ray TsoRay Tso
302614
I do have margins set later, is that the case here?
– Ray Tso
Nov 27 '18 at 14:30
add a comment |
Basically I have a vertical UIStackView filled with container views.
I am seeing null properties(?) on the container views
"NSLayoutConstraint:0x600000c3ed50 UICollectionView:0x7f954c871000.leading == UIView:0x7f954c5a5330.(null)"
what is this constraint trying to compare to? There are other properties from this address(0x7f954c5a5330) that aren't null (.trailing, .left, .width, etc), how can I resolve this?
I'm guessing that constraints would break only when the container view is hidden, but I'm not sure.
Full output as below:
"<NSLayoutConstraint:0x600000c3ed50 UICollectionView:0x7f954c871000.leading == UIView:0x7f954c5a5330.(null)>",
"<NSLayoutConstraint:0x600000c3edf0 UIView:0x7f954c5a5330.trailing == UICollectionView:0x7f954c871000.trailing>",
"<NSLayoutConstraint:0x600000c3b7a0 UIView:0x7f954c5a5330.width == 0>",
"<NSLayoutConstraint:0x600000c3f0c0 UILayoutGuide:0x6000016d9960.left == UIView:0x7f954c5a5330.left + 20>"
Will attempt to recover by breaking constraint
<NSLayoutConstraint:0x600000c3ed50 UICollectionView:0x7f954c871000.leading == UIView:0x7f954c5a5330.(null)>
ios autolayout nslayoutconstraint uistackview
asked Nov 27 '18 at 14:24
Ray TsoRay Tso
302614
Basically I have a vertical UIStackView filled with container views.
I am seeing null properties(?) on the container views
"NSLayoutConstraint:0x600000c3ed50 UICollectionView:0x7f954c871000.leading == UIView:0x7f954c5a5330.(null)"
what is this constraint trying to compare to? There are other properties from this address(0x7f954c5a5330) that aren't null (.trailing, .left, .width, etc), how can I resolve this?
I'm guessing that constraints would break only when the container view is hidden, but I'm not sure.
Full output as below:
"<NSLayoutConstraint:0x600000c3ed50 UICollectionView:0x7f954c871000.leading == UIView:0x7f954c5a5330.(null)>",
"<NSLayoutConstraint:0x600000c3edf0 UIView:0x7f954c5a5330.trailing == UICollectionView:0x7f954c871000.trailing>",
"<NSLayoutConstraint:0x600000c3b7a0 UIView:0x7f954c5a5330.width == 0>",
"<NSLayoutConstraint:0x600000c3f0c0 UILayoutGuide:0x6000016d9960.left == UIView:0x7f954c5a5330.left + 20>"
Will attempt to recover by breaking constraint
<NSLayoutConstraint:0x600000c3ed50 UICollectionView:0x7f954c871000.leading == UIView:0x7f954c5a5330.(null)>
ios autolayout nslayoutconstraint uistackview
ios autolayout nslayoutconstraint uistackview
asked Nov 27 '18 at 14:24
Ray TsoRay Tso
302614
asked Nov 27 '18 at 14:24
Ray TsoRay Tso
302614
asked Nov 27 '18 at 14:24
Ray TsoRay Tso
302614
asked Nov 27 '18 at 14:24
Ray TsoRay Tso
302614
asked Nov 27 '18 at 14:24
Ray TsoRay Tso
302614
302614
I do have margins set later, is that the case here?
– Ray Tso
Nov 27 '18 at 14:30
add a comment |
I do have margins set later, is that the case here?
– Ray Tso
Nov 27 '18 at 14:30
I do have margins set later, is that the case here?
– Ray Tso
Nov 27 '18 at 14:30
I do have margins set later, is that the case here?
– Ray Tso
Nov 27 '18 at 14:30
add a comment |
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I do have margins set later, is that the case here?
– Ray Tso
Nov 27 '18 at 14:30