已经安装'laravel/homestead' box (0.4.1)，但是执行homestead up时提示找不到box，还自动要下载0.3.0版本的box。怎么办？
代码如下：
➜ ~ homestead up
Bringing machine 'default' up with 'virtualbox' provider...
==> default: Box 'laravel/homestead' could not be found. Attempting to find and install...
default: Box Provider: virtualbox
default: Box Version: <= 0.3.0
已安装：
➜ ~ vagrant box list
laravel/homestead (virtualbox, 0.4.1)
vagrant up可以正常启动
➜ ~ vagrant up
Bringing machine 'default' up with 'virtualbox' provider...
==> default: Checking if box 'laravel/homestead' is up to date...
==> default: Clearing any previously set forwarded ports...
==> default: Clearing any previously set network interfaces...
==> default: Preparing network interfaces based on configuration...
default: Adapter 1: nat
==> default: Forwarding ports...
default: 22 (guest) => 2222 (host) (adapter 1)
==> default: Booting VM...
==> default: Waiting for machine to boot. This may take a few minutes...
default: SSH address: 127.0.0.1:2222
default: SSH username: vagrant
default: SSH auth method: private key
==> default: Machine booted and ready!
==> default: Checking for guest additions in VM...
==> default: Mounting shared folders...
default: /vagrant => /Users/zyy
==> default: Machine already provisioned. Run `vagrant provision` or use the `--provision`
==> default: flag to force provisioning. Provisioners marked to run always will still run.Homestead\scripts\文件夹中，打开homestead.rb文件
修改config.vm.box_version = settings["version"] ||= ">= 0.4.0"
打开homestead.rb文件 把 config.vm.box_version = settings["version"] ||= ">= 0.4.0" 改为 config.vm.box_version = settings["version"] ||= ">= 0"