/Users/shaddeler/Developer/run/Homestead/scripts/homestead.rb:169:in `+': no implicit conversion of nil into String (TypeError)
from /Users/shaddeler/Developer/run/Homestead/scripts/homestead.rb:169:in `block (2 levels) in configure'
from /opt/vagrant/embedded/gems/gems/vagrant-1.8.6/plugins/kernel_v2/config/vm_provisioner.rb:72:in `call'
from /opt/vagrant/embedded/gems/gems/vagrant-1.8.6/plugins/kernel_v2/config/vm_provisioner.rb:72:in `add_config'
from /opt/vagrant/embedded/gems/gems/vagrant-1.8.6/plugins/kernel_v2/config/vm.rb:324:in `provision'
from /Users/shaddeler/Developer/run/Homestead/scripts/homestead.rb:168:in `block in configure'
from /Users/shaddeler/Developer/run/Homestead/scripts/homestead.rb:157:in `each'
from /Users/shaddeler/Developer/run/Homestead/scripts/homestead.rb:157:in `configure'
from /Users/shaddeler/Developer/run/Homestead/Vagrantfile:30: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>'
我在流浪汉时加入了这个错误
答案 0 :(得分：5)
我也有这个问题。我不小心缩进，而是不小心在Homestead.yaml文件中添加了另一个破折号（-）。
例如，这是不正确的一个：
- map: testing.khc.my
- to: /home/vagrant/code/testing/public
正确是这样的：
- map: testing.khc.my
to: /home/vagrant/code/testing/public
希望这对以后的所有人有帮助。
答案 1 :(得分：4)
我也遇到了这个错误，这真的很痛苦。问题的根源是Homestead.yaml文件中的错误缩进。检查您是否使用空格或制表符。