uninitialized constant AzkabanUtil::JSON (NameError)

Question

在跑的时候一直出现 uninitialized constant AzkabanUtil::JSON (NameError)的错误。一开始以为是因为没有安装json，但是在gem install json之后依旧如此。背景是在azkaban 上set up一个solo-server。上码：

response = JSON.parse(resp.body)

Error:

/Users/sherrysong/Desktop/pcs-develop-c1c7f117714d1a6642e819db1c8b8c40e4ba78e8/azkaban-lib/azkaban_util.rb:115:in `run_scheduler': uninitialized constant AzkabanUtil::JSON (NameError)
from /Users/sherrysong/Desktop/pcs-develop-c1c7f117714d1a6642e819db1c8b8c40e4ba78e8/azkaban-lib/azkaban_util.rb:42:in `schedule_flow'
from /Users/sherrysong/Desktop/pcs-develop-c1c7f117714d1a6642e819db1c8b8c40e4ba78e8/azkaban-lib/project_deployer.rb:55:in `block in schedule'
from /Users/sherrysong/Desktop/pcs-develop-c1c7f117714d1a6642e819db1c8b8c40e4ba78e8/azkaban-lib/project_deployer.rb:51:in `each'
from /Users/sherrysong/Desktop/pcs-develop-c1c7f117714d1a6642e819db1c8b8c40e4ba78e8/azkaban-lib/project_deployer.rb:51:in `schedule'
from azkaban-lib/project.rb:97:in `<main>'

Answer 1

可能两个原因：

1. 没装JSON

2. 脚本没import JSON

Answer 2

require 'json'

Answer 3

可能需要自己修改一下gem再用。

我以前一直以为segment fault是个英文论坛。。。这个网站中英文翻译做得还挺好的！