webstorm 安装 supervisor 不能调试代码

只能运行，不能用webstorm 调试。

"D:\Program Files\JetBrains\WebStorm 8.0.2\bin\runnerw.exe" C:\Users\algz\AppData\Roaming\npm\node-supervisor.cmd --debug bin\www

Running node-supervisor with
  program '--debug bin\www'
  --watch '.'
  --extensions 'node,js'
  --exec 'node'

Starting child process with 'node --debug bin\www'
Watching directory 'D:\WebstormProjects\nodejsdemo' for changes.
debugger listening on port 5858
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Process finished with exit code -1