我想使用本教程创建WebSocket java应用程序：https://blog.openshift.com/deploy-websocket-web-applications-with-jboss-wildfly/。我创建了帐户，安装了ruby，git，rhc，登录成功，创建了密钥，域名。我应该创建应用程序。 rhc app create wildfly diy命令导致错误和此控制台输出：
Using diy-0.1 (Do-It-Yourself 0.1) for 'diy'
Application Options
-------------------
Domain: weedteam
Cartridges: diy-0.1
Gear Size: default
Scaling: no
Creating application 'wildfly' ... done
Disclaimer: This is an experimental cartridge that provides a way to try unsupported languages, frameworks, and middleware on OpenShift.
Waiting for your DNS name to be available ... D:/Ruby22/lib/ruby/2.2.0/resolv.rb
:759:in `recvfrom': Komunikat wys│any na gniazdo datagramu by│ wiŕkszy ni┐ wewnŕ
trzny bufor lub przekracza│ inny sieciowy limit albo bufor u┐ywany do odbierania
datagramˇw by│ mniejszy ni┐ sam datagram. - recvfrom(2) (Errno::EMSGSIZE)
from D:/Ruby22/lib/ruby/2.2.0/resolv.rb:759:in `recv_reply'
from D:/Ruby22/lib/ruby/2.2.0/resolv.rb:690:in `request'
from D:/Ruby22/lib/ruby/2.2.0/resolv.rb:528:in `block in fetch_resource'
from D:/Ruby22/lib/ruby/2.2.0/resolv.rb:1096:in `block (3 levels) in res
olv'
from D:/Ruby22/lib/ruby/2.2.0/resolv.rb:1094:in `each'
from D:/Ruby22/lib/ruby/2.2.0/resolv.rb:1094:in `block (2 levels) in res
olv'
from D:/Ruby22/lib/ruby/2.2.0/resolv.rb:1093:in `each'
from D:/Ruby22/lib/ruby/2.2.0/resolv.rb:1093:in `block in resolv'
from D:/Ruby22/lib/ruby/2.2.0/resolv.rb:1091:in `each'
from D:/Ruby22/lib/ruby/2.2.0/resolv.rb:1091:in `resolv'
from D:/Ruby22/lib/ruby/2.2.0/resolv.rb:519:in `fetch_resource'
from D:/Ruby22/lib/ruby/2.2.0/resolv.rb:509:in `each_resource'
from D:/Ruby22/lib/ruby/2.2.0/resolv.rb:500:in `getresources'
from D:/Ruby22/lib/ruby/gems/2.2.0/gems/rhc-1.35.4/lib/rhc/helpers.rb:43
4:in `host_exists?'
from D:/Ruby22/lib/ruby/gems/2.2.0/gems/rhc-1.35.4/lib/rhc/commands/app.
rb:675:in `block in dns_propagated?'
from D:/Ruby22/lib/ruby/gems/2.2.0/gems/rhc-1.35.4/lib/rhc/commands/app.
rb:674:in `upto'
from D:/Ruby22/lib/ruby/gems/2.2.0/gems/rhc-1.35.4/lib/rhc/commands/app.
rb:674:in `dns_propagated?'
from D:/Ruby22/lib/ruby/gems/2.2.0/gems/rhc-1.35.4/lib/rhc/commands/app.
rb:201:in `block in create'
from D:/Ruby22/lib/ruby/gems/2.2.0/gems/rhc-1.35.4/lib/rhc/highline_exte
nsions.rb:190:in `call'
from D:/Ruby22/lib/ruby/gems/2.2.0/gems/rhc-1.35.4/lib/rhc/highline_exte
nsions.rb:190:in `section'
from D:/Ruby22/lib/ruby/gems/2.2.0/gems/rhc-1.35.4/lib/rhc/highline_exte
nsions.rb:204:in `paragraph'
from D:/Ruby22/lib/ruby/gems/2.2.0/gems/rhc-1.35.4/lib/rhc/helpers.rb:33
7:in `block (2 levels) in <module:Helpers>'
from D:/Ruby22/lib/ruby/gems/2.2.0/gems/rhc-1.35.4/lib/rhc/commands/app.
rb:199:in `create'
from D:/Ruby22/lib/ruby/gems/2.2.0/gems/rhc-1.35.4/lib/rhc/commands.rb:2
94:in `execute'
from D:/Ruby22/lib/ruby/gems/2.2.0/gems/rhc-1.35.4/lib/rhc/commands.rb:2
85:in `block (3 levels) in to_commander'
from D:/Ruby22/lib/ruby/gems/2.2.0/gems/commander-4.2.1/lib/commander/co
mmand.rb:180:in `call'
from D:/Ruby22/lib/ruby/gems/2.2.0/gems/commander-4.2.1/lib/commander/co
mmand.rb:180:in `call'
from D:/Ruby22/lib/ruby/gems/2.2.0/gems/commander-4.2.1/lib/commander/co
mmand.rb:155:in `run'
from D:/Ruby22/lib/ruby/gems/2.2.0/gems/commander-4.2.1/lib/commander/ru
nner.rb:419:in `run_active_command'
from D:/Ruby22/lib/ruby/gems/2.2.0/gems/rhc-1.35.4/lib/rhc/command_runne
r.rb:72:in `run!'
from D:/Ruby22/lib/ruby/gems/2.2.0/gems/commander-4.2.1/lib/commander/de
legates.rb:8:in `run!'
from D:/Ruby22/lib/ruby/gems/2.2.0/gems/rhc-1.35.4/lib/rhc/cli.rb:37:in
`start'
from D:/Ruby22/lib/ruby/gems/2.2.0/gems/rhc-1.35.4/bin/rhc:20:in `<top (
required)>'
from D:/Ruby22/bin/rhc:23:in `load'
from D:/Ruby22/bin/rhc:23:in `<main>'
当我在网站上查看时，应用程序已创建并正在运行，但我无法继续本教程的下一步
$ cd wildfly
$ rhc app stop --app wildfly
$ git rm diy/index.html
$ git rm diy/testrubyserver.rb
cd wildfly无效，rhc app stop --app wildfly停止应用（应该如此），另外2个命令无法找到回购。我认为这是因为create app命令应该做更多的事情，但它被这个错误打断了。我错了吗？我该怎么做才能阻止这种错误发生？