准备查看线上bug的时候，弹出报错提示，如下

xcrun: error: active developer path ("/Applications/Xcode.app/Contents/Developer") does not exist, use xcode-select --switch path/to/Xcode.app to specify the Xcode that you wish to use for command line developer tools (or see man xcode-select)

很明显是说/Applications/Xcode.app/Contents/Developer这个路径出错，然后就想到自己在安装的时候改过xcode默认的名字，因此直接修改一次路径就完事了

sudo xcode-select -switch /Applications/Xcode\ 7.3.app/Contents/Developer

我的xcode重新命名为xcode 7.3,命令中xcode后面要跟一个''，表示后面的是空格跟xcode是一体的

2017/11/6 补充一种需要执行命令的情况

在运行报错，出现的情况与上面的一致

pod install

报错日志：

    /Library/Ruby/Gems/2.3.0/gems/cocoapods-1.3.1/lib/cocoapods/command.rb:129:in `verify_minimum_git_version!': [!] You need at least git version 1.8.5 to use CocoaPods (Pod::Informative)
    from /Library/Ruby/Gems/2.3.0/gems/cocoapods-1.3.1/lib/cocoapods/command.rb:49:in `run'
    from /Library/Ruby/Gems/2.3.0/gems/cocoapods-1.3.1/bin/pod:55:in `<top (required)>'
    from /usr/local/bin/pod:22:in `load'
    from /usr/local/bin/pod:22:in `<main>'