问题描述

升级xcode之后运行项目,提示:

The “Swift Language Version” (SWIFT_VERSION) build setting must be set to a supported value for targets which use Swift. This setting can be set in the build settings editor.

问题解决

应该是新版的xcode升级了对swift的支持,不在支持swift3,修改工程配置即可。

xcode-target-build setting 找到swift language version 修改为swift4以上即可。

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