无法自动更新约束 [英] Failed to automatically update constraints

问题描述

在尝试使用自动布局在更新到xCode 9后对任何viewController进行添加，重置或更新任何约束时，出现无法自动更新约束错误.我已经清理并重新启动了Mac.

I am getting the Failure to automatically update constraints error when trying to use the auto layout to Add, Reset, or Update any restraints on any viewController after updating to xCode 9. Any ideas? I have already cleaned and restarted my Mac.

仍然没有找到解决方案.我将其范围缩小到其中具有collectionView的任何viewController.有什么想法吗?

Still have not found a solution for this. I narrowed it down to any viewController with a collectionView inside it. Any ideas?

推荐答案

适用于所有关注此内容的人.xCode 9.0.1已发布.经过测试，可以修复此错误.我无法复制.

For everyone following this. xCode 9.0.1 is out. Tested and it fixes this error. I haven’t be able to reproduce.

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