Ruby on rails can'；t将数组转换为字符串

我的

配方/default.rb中有以下命令：

 data = data_bag_item('config','info')

 bash "setup_hadoop" do
   user "#{node[:cluster][:user]}"
   group "#{node[:cluster][:user]}"
   cwd "#{node[:cluster][:home]}"
   code <<-EOF
     wget http://apache.mirror.gtcomm.net/hadoop/common/hadoop-1.2.1/hadoop-1.2.1.tar.gz
     tar -xzvf hadoop-1.2.1.tar.gz
     mv hadoop-1.2.1 hadoop
   EOF

    template "#{node[:cluster][:hadoop]}/hadoop-env.sh" do
       source "hadoop-env.sh.erb"
       mode 0755
       owner "#{node[:cluster][:user]}"
       group "#{node[:cluster][:user]}"
       variables( :cluster_size => data['cluster_size'] )
   end

然而，当我尝试使用数据包时，我得到了以下错误：

[2014-05-05T14:35:45+00:00] INFO: Running start handlers
[2014-05-05T14:35:45+00:00] INFO: Start handlers complete.
[2014-05-05T14:35:45+00:00] ERROR: Failed to load data bag item: "config" "info"

================================================================================
Recipe Compile Error in /tmp/vagrant-chef-6/chef-solo-1/cookbooks/cluster/recipes/default.rb
================================================================================


TypeError
---------
can't convert Array into String


Cookbook Trace:
---------------
  /tmp/vagrant-chef-6/chef-solo-1/cookbooks/cluster/recipes/default.rb:10:in `from_file'


Relevant File Content:
----------------------
/tmp/vagrant-chef-6/chef-solo-1/cookbooks/cluster/recipes/default.rb:
    TypeError
    ---------
can't convert Array into String
 10>> data = data_bag_item('config','info')
 11:  
 12:  bash "setup_hadoop" do
 13:     user "#{node[:cluster][:user]}"
 14:     group "#{node[:cluster][:user]}"
 15:     cwd "#{node[:cluster][:home]}"
 16:     code <<-EOF
 17:     wget http://apache.mirror.gtcomm.net/hadoop/common/hadoop-1.2.1/hadoop-1.2.1.tar.gz
 18:     tar -xzvf hadoop-1.2.1.tar.gz
 19:     mv hadoop-1.2.1 hadoop
 20:     variables( :cluster_size => data['cluster_size'] )

这似乎是正确的。有人能帮我吗？我按照教程创建了数据包。
你为什么要做
“#{node[：cluster][：user]}”
而不是仅仅做
节点[：cluster][：user]
？你具体做了什么导致出现此错误？@JustinWood我正在运行
vagrant up--provider=aws
，但这就是代码。。。对于你的第一个问题，我正在替换字符串中的一个变量，你能添加堆栈跟踪的相关部分吗？这一切都是StackOverflow，不是吗？@Patru我马上就去做
[2014-05-05T14:35:45+00:00] INFO: Running start handlers
[2014-05-05T14:35:45+00:00] INFO: Start handlers complete.
[2014-05-05T14:35:45+00:00] ERROR: Failed to load data bag item: "config" "info"

================================================================================
Recipe Compile Error in /tmp/vagrant-chef-6/chef-solo-1/cookbooks/cluster/recipes/default.rb
================================================================================


TypeError
---------
can't convert Array into String


Cookbook Trace:
---------------
  /tmp/vagrant-chef-6/chef-solo-1/cookbooks/cluster/recipes/default.rb:10:in `from_file'


Relevant File Content:
----------------------
/tmp/vagrant-chef-6/chef-solo-1/cookbooks/cluster/recipes/default.rb:
    TypeError
    ---------
can't convert Array into String
 10>> data = data_bag_item('config','info')
 11:  
 12:  bash "setup_hadoop" do
 13:     user "#{node[:cluster][:user]}"
 14:     group "#{node[:cluster][:user]}"
 15:     cwd "#{node[:cluster][:home]}"
 16:     code <<-EOF
 17:     wget http://apache.mirror.gtcomm.net/hadoop/common/hadoop-1.2.1/hadoop-1.2.1.tar.gz
 18:     tar -xzvf hadoop-1.2.1.tar.gz
 19:     mv hadoop-1.2.1 hadoop
 20:     variables( :cluster_size => data['cluster_size'] )

knife data bag show config info
cluster_size: 2
id:           info