本文记录解决 invalid byte sequence in UTF-8 (ArgumentError) 错误的过程。
停电，但笔记本没有关机，不知为何后来运行在vagrant的php程序连接本机的mysql就超时了，重新vagrant ssh也进不去了，于是用vagrant halt将机器关掉重开，可能因为ssh不能用了，所以也关不掉，不过后来可能是自己shutdown了。错误发生在用vagrant up重新启动vagrant时，报错如下：
C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/plugins/providers/virtualbox/driver/version_5_0.rb:388:in `split': invalid byte sequence in UTF-8 (ArgumentError)
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/plugins/providers/virtualbox/driver/version_5_0.rb:388:in `read_forwarded_ports'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/plugins/providers/virtualbox/driver/version_5_0.rb:601:in `block in read_used_ports'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/plugins/providers/virtualbox/driver/version_5_0.rb:593:in `each'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/plugins/providers/virtualbox/driver/version_5_0.rb:593:in `read_used_ports'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/plugins/providers/virtualbox/action/prepare_forwarded_port_collision_params.rb:12:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/warden.rb:50:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/builtin/before_trigger.rb:23:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/warden.rb:50:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/builtin/after_trigger.rb:26:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/warden.rb:50:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/builtin/env_set.rb:19:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/warden.rb:50:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/builtin/before_trigger.rb:23:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/warden.rb:50:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/builtin/after_trigger.rb:26:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/warden.rb:50:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/builtin/provision.rb:80:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/warden.rb:50:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/builtin/before_trigger.rb:23:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/warden.rb:50:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/builtin/after_trigger.rb:26:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/warden.rb:50:in `call'
from C:/Users/qi/.vagrant.d/gems/2.4.4/gems/vagrant_box_version-0.0.7/lib/vagrant_box_version/action.rb:14:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/warden.rb:50:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/builtin/before_trigger.rb:23:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/warden.rb:50:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/builtin/after_trigger.rb:26:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/warden.rb:50:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/plugins/providers/virtualbox/action/clear_forwarded_ports.rb:15:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/warden.rb:50:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/builtin/before_trigger.rb:23:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/warden.rb:50:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/builtin/after_trigger.rb:26:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/warden.rb:50:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/plugins/providers/virtualbox/action/set_name.rb:19:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/warden.rb:50:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/builtin/before_trigger.rb:23:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/warden.rb:50:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/builtin/after_trigger.rb:26:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/warden.rb:50:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/plugins/providers/virtualbox/action/clean_machine_folder.rb:17:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/warden.rb:50:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/builtin/before_trigger.rb:23:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/warden.rb:50:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/builtin/after_trigger.rb:26:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/warden.rb:50:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/plugins/providers/virtualbox/action/check_accessible.rb:18:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/warden.rb:50:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/builtin/before_trigger.rb:23:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/warden.rb:50:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/warden.rb:121:in `block in finalize_action'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/warden.rb:50:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/builder.rb:116:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/runner.rb:102:in `block in run'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/util/busy.rb:19:in `busy'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/runner.rb:102:in `run'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/builtin/call.rb:53:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/warden.rb:50:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/builtin/before_trigger.rb:23:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/warden.rb:50:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/warden.rb:121:in `block in finalize_action'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/warden.rb:50:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/builder.rb:116:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/runner.rb:102:in `block in run'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/util/busy.rb:19:in `busy'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/runner.rb:102:in `run'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/builtin/call.rb:53:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/warden.rb:50:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/builtin/before_trigger.rb:23:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/warden.rb:50:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/warden.rb:121:in `block in finalize_action'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/warden.rb:50:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/builder.rb:116:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/runner.rb:102:in `block in run'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/util/busy.rb:19:in `busy'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/runner.rb:102:in `run'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/builtin/call.rb:53:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/warden.rb:50:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/builtin/before_trigger.rb:23:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/warden.rb:50:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/builtin/after_trigger.rb:26:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/warden.rb:50:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/builtin/box_check_outdated.rb:23:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/warden.rb:50:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/builtin/before_trigger.rb:23:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/warden.rb:50:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/builtin/after_trigger.rb:26:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/warden.rb:50:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/builtin/config_validate.rb:25:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/warden.rb:50:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/builtin/before_trigger.rb:23:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/warden.rb:50:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/builtin/after_trigger.rb:26:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/warden.rb:50:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/plugins/providers/virtualbox/action/check_virtualbox.rb:26:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/warden.rb:50:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/builtin/before_trigger.rb:23:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/warden.rb:50:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/builtin/after_trigger.rb:26:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/warden.rb:50:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/warden.rb:121:in `block in finalize_action'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/warden.rb:50:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/warden.rb:121:in `block in finalize_action'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/warden.rb:50:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/builder.rb:116:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/runner.rb:102:in `block in run'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/util/busy.rb:19:in `busy'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/runner.rb:102:in `run'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/builtin/call.rb:53:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/warden.rb:50:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/builtin/before_trigger.rb:23:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/warden.rb:50:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/builtin/after_trigger.rb:26:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/warden.rb:50:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/builtin/config_validate.rb:25:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/warden.rb:50:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/builtin/before_trigger.rb:23:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/warden.rb:50:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/builtin/after_trigger.rb:26:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/warden.rb:50:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/warden.rb:121:in `block in finalize_action'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/warden.rb:50:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/warden.rb:121:in `block in finalize_action'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/warden.rb:50:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/builder.rb:116:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/runner.rb:102:in `block in run'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/util/busy.rb:19:in `busy'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/runner.rb:102:in `run'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/builtin/call.rb:53:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/warden.rb:50:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/builtin/before_trigger.rb:23:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/warden.rb:50:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/builtin/after_trigger.rb:26:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/warden.rb:50:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/plugins/providers/virtualbox/action/check_virtualbox.rb:26:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/warden.rb:50:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/builtin/before_trigger.rb:23:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/warden.rb:50:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/builder.rb:116:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/runner.rb:102:in `block in run'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/util/busy.rb:19:in `busy'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/action/runner.rb:102:in `run'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/machine.rb:238:in `action_raw'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/machine.rb:209:in `block in action'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/environment.rb:615:in `lock'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/machine.rb:195:in `call'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/machine.rb:195:in `action'
from C:/Develop/Vagrant/embedded/gems/2.2.4/gems/vagrant-2.2.4/lib/vagrant/batch_action.rb:82:in `block (2 levels) in run'
失败的尝试
于是Google检索并尝试修正错误：
方案一在StackOverflow上有人问了同样的错误，Vagrant Up Fails: invalid byte sequence in UTF-8 (ArgumentError)，但没有解答。
方案二Github上关于此问题的相关讨论有vagrant up fails if `VBoxManage showvminfo’ contains non-UTF8 characters.和C:/Program Files (x86)/Vagrant/embedded/gems/gems/vagrant-2.0.2/plugins/providers/virtualbox/driver/version_5_0.rb:388:in `split’: invalid byte sequence in UTF-8 (ArgumentError)，其方案是用下面命令发现并修订vminfo中可能的字符错误：
VBoxManage list vms
VBoxManage showvminfo --machinereadable
不过我的命令输出中没有非ascii字符。
方案三又查到3 invalid byte sequence in UTF-8 (Argument Error)，其解决方案是删除~/.vagrant.d/目录，我试过无用，然后将目录恢复了。
方案四查到Vagrant 使用中碰到的一个奇葩问题，其分析是中文备份名称导致的，我这里没有备份/快照，所以仅参考学习了。
方案五在ruby中in `split’: invalid byte sequence in UTF-8 (ArgumentError)解决方法查到关于相关Ruby错误的一种解决办法如下：
在ruby代码中由于为了防止中文乱码问题加了#encoding=UTF-8，不过引起了另一个问题
in `split’: invalid byte sequence in UTF-8 (ArgumentError)，解决方法为
将arr=arr = url.split(“&”)修改为
arr = url.force_encoding(“gb2312”).split(“&”) 即可
于是参照着修改了C:\Develop\Vagrant\embedded\gems\2.2.4\gems\vagrant-2.2.4\plugins\providers\virtualbox\driver\version_5_0.rb，问题解决了。
# 修改第388行的
info.split("\n").each do |line|
# 为
info.force_encoding("gb2312").split("\n").each do |line|
总结
现在只是知道了这是Ruby相关的字符错误，暂时解决了问题，但还不了解问题的起因和缘故。先简要总结以下几点：
- 莫名的开发环境错误很耽误事，很烦人
- 多试个解决方案，也许就解决了
- 要仔细看报错信息
- 要大胆该程序文件，改了之后备注好就行，免得以后忘记了
- 也许下次升级vagrant后此问题会重现，到时再根据此文记录临时解决问题
-- EOF --
本文最后修改于6年前 (2019-05-16)
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