Mac 10.10 系统安装 Homestead 后，Vagrant up 和 Vagrant SSH 出现 错误，安装过程已检查没问题，

mac 10.10系统安装 homestead 后，vagrant up 和vagrant ssh 出现 错误，安装过程已检查没问题，请教是哪里错误需要修改

HuizhongdeMacBook-Pro:homestead huizhong$ vagrant up
/Users/huizhong/Homestead/scripts/homestead.rb:106:in read': No such file or directory @ rb_sysopen - /Users/huizhong/.ssh/id_rsa (Errno::ENOENT) from /Users/huizhong/Homestead/scripts/homestead.rb:106:inblock (2 levels) in configure'
from /opt/vagrant/embedded/gems/gems/vagrant-1.8.1/plugins/kernel_v2/config/vm_provisioner.rb:72:in call' from /opt/vagrant/embedded/gems/gems/vagrant-1.8.1/plugins/kernel_v2/config/vm_provisioner.rb:72:inadd_config'
from /opt/vagrant/embedded/gems/gems/vagrant-1.8.1/plugins/kernel_v2/config/vm.rb:321:in provision' from /Users/huizhong/Homestead/scripts/homestead.rb:103:inblock in configure'
from /Users/huizhong/Homestead/scripts/homestead.rb:102:in each' from /Users/huizhong/Homestead/scripts/homestead.rb:102:inconfigure'
from /Users/huizhong/Homestead/Vagrantfile:20:in block in <top (required)>' from /opt/vagrant/embedded/gems/gems/vagrant-1.8.1/lib/vagrant/config/v2/loader.rb:37:incall'
from /opt/vagrant/embedded/gems/gems/vagrant-1.8.1/lib/vagrant/config/v2/loader.rb:37:in load' from /opt/vagrant/embedded/gems/gems/vagrant-1.8.1/lib/vagrant/config/loader.rb:113:inblock (2 levels) in load'
from /opt/vagrant/embedded/gems/gems/vagrant-1.8.1/lib/vagrant/config/loader.rb:107:in each' from /opt/vagrant/embedded/gems/gems/vagrant-1.8.1/lib/vagrant/config/loader.rb:107:inblock in load'
from /opt/vagrant/embedded/gems/gems/vagrant-1.8.1/lib/vagrant/config/loader.rb:104:in each' from /opt/vagrant/embedded/gems/gems/vagrant-1.8.1/lib/vagrant/config/loader.rb:104:inload'
from /opt/vagrant/embedded/gems/gems/vagrant-1.8.1/lib/vagrant/vagrantfile.rb:28:in initialize' from /opt/vagrant/embedded/gems/gems/vagrant-1.8.1/lib/vagrant/environment.rb:740:innew'
from /opt/vagrant/embedded/gems/gems/vagrant-1.8.1/lib/vagrant/environment.rb:740:in vagrantfile' from /opt/vagrant/embedded/gems/gems/vagrant-1.8.1/lib/vagrant/environment.rb:486:inhost'
from /opt/vagrant/embedded/gems/gems/vagrant-1.8.1/lib/vagrant/environment.rb:208:in block in action_runner' from /opt/vagrant/embedded/gems/gems/vagrant-1.8.1/lib/vagrant/action/runner.rb:33:incall'
from /opt/vagrant/embedded/gems/gems/vagrant-1.8.1/lib/vagrant/action/runner.rb:33:in run' from /opt/vagrant/embedded/gems/gems/vagrant-1.8.1/lib/vagrant/environment.rb:473:inhook'
from /opt/vagrant/embedded/gems/gems/vagrant-1.8.1/lib/vagrant/environment.rb:722:in unload' from /opt/vagrant/embedded/gems/gems/vagrant-1.8.1/bin/vagrant:177:inensure in '
from /opt/vagrant/embedded/gems/gems/vagrant-1.8.1/bin/vagrant:177:in `'