/opt/vagrant/embedded/lib/ruby/2.4./psych.rb::in `parse': (<unknown>): mapping values are not allowed in this context at line 115 column 10 (Psych::SyntaxError)
from /opt/vagrant/embedded/lib/ruby/2.4./psych.rb::in `parse_stream'
from /opt/vagrant/embedded/lib/ruby/2.4./psych.rb::in `parse'
from /opt/vagrant/embedded/lib/ruby/2.4./psych.rb::in `load'
from /Users/qudian/Homestead/Vagrantfile::in `block in <top (required)>'
from /opt/vagrant/embedded/gems/2.1./gems/vagrant-2.1./lib/vagrant/config/v2/loader.rb::in `load'
from /opt/vagrant/embedded/gems/2.1./gems/vagrant-2.1./lib/vagrant/config/loader.rb::in `block ( levels) in load'
from /opt/vagrant/embedded/gems/2.1./gems/vagrant-2.1./lib/vagrant/config/loader.rb::in `each'
from /opt/vagrant/embedded/gems/2.1./gems/vagrant-2.1./lib/vagrant/config/loader.rb::in `block in load'
from /opt/vagrant/embedded/gems/2.1./gems/vagrant-2.1./lib/vagrant/config/loader.rb::in `each'
from /opt/vagrant/embedded/gems/2.1./gems/vagrant-2.1./lib/vagrant/config/loader.rb::in `load'
from /opt/vagrant/embedded/gems/2.1./gems/vagrant-2.1./lib/vagrant/vagrantfile.rb::in `initialize'
from /opt/vagrant/embedded/gems/2.1./gems/vagrant-2.1./lib/vagrant/environment.rb::in `new'
from /opt/vagrant/embedded/gems/2.1./gems/vagrant-2.1./lib/vagrant/environment.rb::in `vagrantfile'
from /opt/vagrant/embedded/gems/2.1./gems/vagrant-2.1./lib/vagrant/environment.rb::in `host'
from /opt/vagrant/embedded/gems/2.1./gems/vagrant-2.1./lib/vagrant/environment.rb::in `block in action_runner'
from /opt/vagrant/embedded/gems/2.1./gems/vagrant-2.1./lib/vagrant/action/runner.rb::in `run'
from /opt/vagrant/embedded/gems/2.1./gems/vagrant-2.1./lib/vagrant/environment.rb::in `hook'
from /opt/vagrant/embedded/gems/2.1./gems/vagrant-2.1./lib/vagrant/environment.rb::in `unload'
from /opt/vagrant/embedded/gems/2.1./gems/vagrant-2.1./bin/vagrant::in `ensure in <main>'
from /opt/vagrant/embedded/gems/2.1./gems/vagrant-2.1./bin/vagrant::in `<main>'
启动homestead的时候报如上错误，经查询，错误原因为：
这错误，真骚啊。。。。。。