今天写学习swift的时候遇到个错误,本身顺便记录一下,完整错误信息以下swift
SWIFT_VERSION '3.0' is unsupported, supported versions are: 4.0, 4.2, 5.0. (in target '') 复制代码
去Build Setting中把Swift Language Version下改成Swift 4或者5便可bash