Xcode 8.3链接器警告

Question

在提交给Apple之前尝试存档应用.超出警告限制 - 仅显示前200个警告.示例警告:

ld: warning: Linker asked to preserve internal global: 'sharedInstance.sharedInstance'
ld: warning: Linker asked to preserve internal global: '__block_descriptor_tmp'
ld: warning: Linker asked to preserve internal global: '__block_descriptor_tmp'
ld: warning: Linker asked to preserve internal global: '__block_descriptor_tmp'
ld: warning: Linker asked to preserve internal global: '__block_descriptor_tmp'
ld: warning: Linker asked to preserve internal global: '__block_literal_global'
ld: warning: Linker asked to preserve internal global: '__block_descriptor_tmp'
ld: warning: Linker asked to preserve internal global: '__block_descriptor_tmp'
ld: warning: Linker asked to preserve internal global: '__block_descriptor_tmp'

使用Xcode 8.3.3.Swift 3.相关的Firebase pod条目:

Using Firebase (4.0.2)
Using FirebaseAnalytics (4.0.1)
Using FirebaseAuth (4.0.0)
Using FirebaseCore (4.0.2)
Using FirebaseDatabase (4.0.0)
Using FirebaseInstanceID (2.0.0)
Using FirebaseMessaging (2.0.0)
Using FirebaseStorage (2.0.0)

我有一段时间没遇到这个问题,Firebase 3.16好像已经解决了,但现在警告又回来了.警告仅在存档上出现.还有其他人重温这种情况吗？

Answer 1

导入 AdMob SDK 后，当我归档我的项目（工作区）时，出现以下警告：

ld：警告：链接器要求保留内部全局：'__block_descriptor_tmp'

我找到了摆脱它的方法：

Target \ Build Settings \ Build Options \ Enable bitcode = NO

希望这可以帮助！