laravel - vagrant指令执行报错（内有报错详情）-PHP中文网问答

事情经过

前一段时间学习laravel在MAC（Sierra 版本10.12）上安装了一个homestead学习，本来一切正常。就在某次开机后执行 homestead up 就报错了，执行homestead status 也是报错，而且报错内容一样
但是我执行 homestead --version 、 homestead edit 就没问题
于是我就想是不是 homestead 环境出问题了，于是我执行
vagrant box remove laravel/homestead
想把 homestead 删除重装。但是 vagrant 也报错了。于是我就想是不是 vagrant 出问题了于是我想把vagrant 删了于是我执行 vagrant destroy还是报错了

报错信息如下

执行homestead指令的时候报错如下

cottondeMacBook-Pro:bin cotton$ homestead up
/opt/vagrant/embedded/lib/ruby/2.2.0/psych.rb:370:in `parse': (<unknown>): mapping values are not allowed in this context at line 2 column 3 (Psych::SyntaxError)
    from /opt/vagrant/embedded/lib/ruby/2.2.0/psych.rb:370:in `parse_stream'
    from /opt/vagrant/embedded/lib/ruby/2.2.0/psych.rb:318:in `parse'
    from /opt/vagrant/embedded/lib/ruby/2.2.0/psych.rb:245:in `load'
    from /Users/cotton/.composer/vendor/laravel/homestead/Vagrantfile:20:in `block in <top (required)>'
    from /opt/vagrant/embedded/gems/gems/vagrant-1.8.6/lib/vagrant/config/v2/loader.rb:37:in `call'
    from /opt/vagrant/embedded/gems/gems/vagrant-1.8.6/lib/vagrant/config/v2/loader.rb:37:in `load'
    from /opt/vagrant/embedded/gems/gems/vagrant-1.8.6/lib/vagrant/config/loader.rb:113:in `block (2 levels) in load'
    from /opt/vagrant/embedded/gems/gems/vagrant-1.8.6/lib/vagrant/config/loader.rb:107:in `each'
    from /opt/vagrant/embedded/gems/gems/vagrant-1.8.6/lib/vagrant/config/loader.rb:107:in `block in load'
    from /opt/vagrant/embedded/gems/gems/vagrant-1.8.6/lib/vagrant/config/loader.rb:104:in `each'
    from /opt/vagrant/embedded/gems/gems/vagrant-1.8.6/lib/vagrant/config/loader.rb:104:in `load'
    from /opt/vagrant/embedded/gems/gems/vagrant-1.8.6/lib/vagrant/vagrantfile.rb:28:in `initialize'
    from /opt/vagrant/embedded/gems/gems/vagrant-1.8.6/lib/vagrant/environment.rb:746:in `new'
    from /opt/vagrant/embedded/gems/gems/vagrant-1.8.6/lib/vagrant/environment.rb:746:in `vagrantfile'
    from /opt/vagrant/embedded/gems/gems/vagrant-1.8.6/lib/vagrant/environment.rb:492:in `host'
    from /opt/vagrant/embedded/gems/gems/vagrant-1.8.6/lib/vagrant/environment.rb:214:in `block in action_runner'
    from /opt/vagrant/embedded/gems/gems/vagrant-1.8.6/lib/vagrant/action/runner.rb:33:in `call'
    from /opt/vagrant/embedded/gems/gems/vagrant-1.8.6/lib/vagrant/action/runner.rb:33:in `run'
    from /opt/vagrant/embedded/gems/gems/vagrant-1.8.6/lib/vagrant/environment.rb:479:in `hook'
    from /opt/vagrant/embedded/gems/gems/vagrant-1.8.6/lib/vagrant/environment.rb:728:in `unload'
    from /opt/vagrant/embedded/gems/gems/vagrant-1.8.6/bin/vagrant:177:in `ensure in <main>'
    from /opt/vagrant/embedded/gems/gems/vagrant-1.8.6/bin/vagrant:177:in `<main>'

执行vagrant的时候报错信息如下

cottondeMacBook-Pro:bin cotton$ vagrant box remove laravel/homestead
/opt/vagrant/embedded/lib/ruby/2.2.0/psych.rb:370:in `parse': (<unknown>): mapping values are not allowed in this context at line 2 column 3 (Psych::SyntaxError)
    from /opt/vagrant/embedded/lib/ruby/2.2.0/psych.rb:370:in `parse_stream'
    from /opt/vagrant/embedded/lib/ruby/2.2.0/psych.rb:318:in `parse'
    from /opt/vagrant/embedded/lib/ruby/2.2.0/psych.rb:245:in `load'
    from /Users/cotton/.composer/vendor/laravel/homestead/Vagrantfile:20:in `block in <top (required)>'
    from /opt/vagrant/embedded/gems/gems/vagrant-1.8.6/lib/vagrant/config/v2/loader.rb:37:in `call'
    from /opt/vagrant/embedded/gems/gems/vagrant-1.8.6/lib/vagrant/config/v2/loader.rb:37:in `load'
    from /opt/vagrant/embedded/gems/gems/vagrant-1.8.6/lib/vagrant/config/loader.rb:113:in `block (2 levels) in load'
    from /opt/vagrant/embedded/gems/gems/vagrant-1.8.6/lib/vagrant/config/loader.rb:107:in `each'
    from /opt/vagrant/embedded/gems/gems/vagrant-1.8.6/lib/vagrant/config/loader.rb:107:in `block in load'
    from /opt/vagrant/embedded/gems/gems/vagrant-1.8.6/lib/vagrant/config/loader.rb:104:in `each'
    from /opt/vagrant/embedded/gems/gems/vagrant-1.8.6/lib/vagrant/config/loader.rb:104:in `load'
    from /opt/vagrant/embedded/gems/gems/vagrant-1.8.6/lib/vagrant/vagrantfile.rb:28:in `initialize'
    from /opt/vagrant/embedded/gems/gems/vagrant-1.8.6/lib/vagrant/environment.rb:746:in `new'
    from /opt/vagrant/embedded/gems/gems/vagrant-1.8.6/lib/vagrant/environment.rb:746:in `vagrantfile'
    from /opt/vagrant/embedded/gems/gems/vagrant-1.8.6/lib/vagrant/environment.rb:669:in `machine'
    from /opt/vagrant/embedded/gems/gems/vagrant-1.8.6/lib/vagrant/machine_index.rb:441:in `valid?'
    from /opt/vagrant/embedded/gems/gems/vagrant-1.8.6/lib/vagrant/action/builtin/box_remove.rb:82:in `block (2 levels) in call'
    from /opt/vagrant/embedded/gems/gems/vagrant-1.8.6/lib/vagrant/action/builtin/box_remove.rb:82:in `each'
    from /opt/vagrant/embedded/gems/gems/vagrant-1.8.6/lib/vagrant/action/builtin/box_remove.rb:82:in `find_all'
    from /opt/vagrant/embedded/gems/gems/vagrant-1.8.6/lib/vagrant/action/builtin/box_remove.rb:82:in `block in call'
    from /opt/vagrant/embedded/gems/gems/vagrant-1.8.6/lib/vagrant/action/builtin/box_remove.rb:75:in `each'
    from /opt/vagrant/embedded/gems/gems/vagrant-1.8.6/lib/vagrant/action/builtin/box_remove.rb:75:in `call'
    from /opt/vagrant/embedded/gems/gems/vagrant-1.8.6/lib/vagrant/action/warden.rb:34:in `call'
    from /opt/vagrant/embedded/gems/gems/vagrant-1.8.6/lib/vagrant/action/builder.rb:116:in `call'
    from /opt/vagrant/embedded/gems/gems/vagrant-1.8.6/lib/vagrant/action/runner.rb:66:in `block in run'
    from /opt/vagrant/embedded/gems/gems/vagrant-1.8.6/lib/vagrant/util/busy.rb:19:in `busy'
    from /opt/vagrant/embedded/gems/gems/vagrant-1.8.6/lib/vagrant/action/runner.rb:66:in `run'
    from /opt/vagrant/embedded/gems/gems/vagrant-1.8.6/plugins/commands/box/command/remove.rb:52:in `execute'
    from /opt/vagrant/embedded/gems/gems/vagrant-1.8.6/plugins/commands/box/command/root.rb:61:in `execute'
    from /opt/vagrant/embedded/gems/gems/vagrant-1.8.6/lib/vagrant/cli.rb:42:in `execute'
    from /opt/vagrant/embedded/gems/gems/vagrant-1.8.6/lib/vagrant/environment.rb:308:in `cli'
    from /opt/vagrant/embedded/gems/gems/vagrant-1.8.6/bin/vagrant:174:in `<main>'

最后我查看了一下指令第一次报错的地方
/opt/vagrant/embedded/lib/ruby/2.2.0/psych.rb:370:in `parse': (<unknown>): mapping values are not allowed in this context at line 2 column 3 (Psych::SyntaxError)

def self.parse_stream yaml, filename = nil, &block
368     if block_given?
369       parser = Psych::Parser.new(Handlers::DocumentStream.new(&block))
370       parser.parse yaml, filename
371     else
372       parser = self.parser
373       parser.parse yaml, filename
374       parser.handler.root
375     end

ruby我也不懂，请各位路过大神瞅瞅