after i install the nodejs and npm , gitbook-cli ,there is an error.like this:
[root@vagrant-centos65 vagrant]# gitbook -v
/usr/lib/node_modules/gitbook-cli/node_modules/fs-extra/lib/index.js:3
const assign = require('./util/assign')
^^^^^
SyntaxError: Use of const in strict mode.
at Module._compile (module.js:439:25)
at Object.Module._extensions..js (module.js:474:10)
at Module.load (module.js:356:32)
at Function.Module._load (module.js:312:12)
at Module.require (module.js:364:17)
at require (module.js:380:17)
at Object.<anonymous> (/usr/lib/node_modules/gitbook-cli/lib/config.js:2:10)
at Module._compile (module.js:456:26)
at Object.Module._extensions..js (module.js:474:10)
at Module.load (module.js:356:32)
[root@vagrant-centos65 vagrant]# npm -v
1.3.6
[root@vagrant-centos65 vagrant]# node -v
v0.10.48
my nodejs version and npm are v0.10.48 ,1.3.6 ,what should i do ,please help me .