syr verison command does not work

[xyreryp]

syr-cli version: latest

Problem:

When I ran syr version and syr help but got errors.
Here is the code.

$ syr version
Command Not Found: version
/Users/ypxie/.npm-packages/lib/node_modules/@syr/cli/lib/commands/index.js:15
  module.cmd.apply(this, optionals);
         ^

TypeError: Cannot read property 'cmd' of undefined
    at commands (/Users/ypxie/.npm-packages/lib/node_modules/@syr/cli/lib/commands/index.js:15:10)
    at main (/Users/ypxie/.npm-packages/lib/node_modules/@syr/cli/lib/cli.js:25:28)
    at Object.<anonymous> (/Users/ypxie/.npm-packages/lib/node_modules/@syr/cli/lib/cli.js:33:1)
    at Module._compile (internal/modules/cjs/loader.js:722:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:733:10)
    at Module.load (internal/modules/cjs/loader.js:620:32)
    at tryModuleLoad (internal/modules/cjs/loader.js:560:12)
    at Function.Module._load (internal/modules/cjs/loader.js:552:3)
    at Function.Module.runMain (internal/modules/cjs/loader.js:775:12)
    at startup (internal/bootstrap/node.js:300:19)

$ syr help
Command Not Found: help
/Users/ypxie/.npm-packages/lib/node_modules/@syr/cli/lib/commands/index.js:15
  module.cmd.apply(this, optionals);
         ^

TypeError: Cannot read property 'cmd' of undefined
    at commands (/Users/ypxie/.npm-packages/lib/node_modules/@syr/cli/lib/commands/index.js:15:10)
    at main (/Users/ypxie/.npm-packages/lib/node_modules/@syr/cli/lib/cli.js:25:28)
    at Object.<anonymous> (/Users/ypxie/.npm-packages/lib/node_modules/@syr/cli/lib/cli.js:33:1)
    at Module._compile (internal/modules/cjs/loader.js:722:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:733:10)
    at Module.load (internal/modules/cjs/loader.js:620:32)
    at tryModuleLoad (internal/modules/cjs/loader.js:560:12)
    at Function.Module._load (internal/modules/cjs/loader.js:552:3)
    at Function.Module.runMain (internal/modules/cjs/loader.js:775:12)
    at startup (internal/bootstrap/node.js:300:19)