【Xcode】Command ComplieSwiftSources failed with a nonzero exit code の解決方法 https://shuhey-hashimoto.com/xcode/%e3%80%90xcode%e3%80%91command-complieswiftsources-failed-with-a-nonzero-exit-code-%e3%81%ae%e8%a7%a3%e6%b1%ba%e6%96%b9%e6%b3%95/