Unexpected identifier

[ashishdoneriya]

/usr/local/lib/node_modules/node-file-manager/node_modules/koa/node_modules/composition/index.js:116
return yield Promise.resolve(promise);
^^^^^^^
SyntaxError: Unexpected identifier
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. (/usr/local/lib/node_modules/node-file-manager/node_modules/koa/lib/application.js:10:19)
at Module._compile (module.js:456:26)
at Object.Module._extensions..js (module.js:474:10)
at Module.load (module.js:356:32)

[efeiefei]

you should use node version > 0.11
and node --harmony index.js