Xcode 不显示编译错误
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Xcode not displaying compile errors
提问by ajith Kumark
I'm working in a specific Xcode project and deliberatly making errors in my code (like using undeclaredvariables), but Xcode doesnt seem to show any compile errors in my code.
我在一个特定的 Xcode 项目中工作并故意在我的代码中出错（比如使用未声明的变量），但 Xcode 似乎没有在我的代码中显示任何编译错误。
It shows errors only when its build or clean.
Tried clean and build, cleaning derived data and restarted both Xcode and system, none of it works.
Using Xcode 8.2.1 (8C1002) and Swift 3
它仅在构建或清理时显示错误。
尝试清理和构建，清理派生数据并重新启动 Xcode 和系统，但都不起作用。
使用 Xcode 8.2.1 (8C1002) 和 Swift 3
回答by Paulo Mattos
Besides the DerivedDatafolder, also try cleaning Xcode cachescompletely:
除了DerivedData文件夹之外，还可以尝试彻底清理 Xcode缓存：
rm -rf $HOME/Library/Caches/com.apple.dt.Xcode/
I would recommend also killing the SourceKitprocess — always a source of issues these days! — but since you are already did a full reboot, so looks like you are good there.
我还建议终止这个SourceKit过程——这些天总是一个问题的根源！- 但是由于您已经完全重新启动，所以看起来您在那里很好。
If everything fails, you might consider upgrading to the latest Xcode, version 8.3. Just be aware that:
如果一切都失败了，您可以考虑升级到最新的 Xcode 8.3 版。请注意：
Xcode 8.3 no longer supports Swift 2.3. Please migrate your projects containing Swift 2.3 code to Swift 3 syntax by opening the project and choosing Edit > Convert > To Current Swift Syntax.
Xcode 8.3 不再支持 Swift 2.3。请通过打开项目并选择“编辑”>“转换”>“到当前 Swift 语法”将包含 Swift 2.3 代码的项目迁移到 Swift 3 语法。
回答by Paul
Project Settings, "Show all issues" fixed it for me.
项目设置，“显示所有问题”为我修复了它。
