[root@huajunshuo node_modules]# yo -v

Error: EACCES, permission denied '/root/.config/configstore/insight-yo.yml'
You don't have access to this file.

    at Object.fs.openSync (evalmachine.<anonymous>:439:18)
    at Object.fs.readFileSync (evalmachine.<anonymous>:290:15)
    at Object.create.all.get (/usr/lib/node_modules/yo/node_modules/configstore/index.js:34:29)
    at Object.Configstore (/usr/lib/node_modules/yo/node_modules/configstore/index.js:27:44)
    at new Insight (/usr/lib/node_modules/yo/node_modules/insight/lib/index.js:36:34)
    at Object.<anonymous> (/usr/lib/node_modules/yo/lib/cli.js:117:15)
    at Module._compile (module.js:456:26)
    at Object.Module._extensions..js (module.js:474:10)
    at Module.load (module.js:356:32)
    at Function.Module._load (module.js:312:12)