Can't use in VS Code version (1.35.1)

[tianlinzx]

Can't use in VS Code version (1.35.1)。
I followed the installation instruction , however the expected menu didn't appear from File menu.
OS:Mojave 10.14.5
VSCode:1.35.1
Plugin:0.0.6

[tianlinzx]

/usr/local/bin/node --inspect-brk=45440 out/extension.js
Debugger listening on ws://127.0.0.1:45440/bc78c05e-4ba8-4c28-87ed-df507cbb313c
For help, see: https://nodejs.org/en/docs/inspector
Debugger attached.
internal/modules/cjs/loader.js:626
throw err;
^

Error: Cannot find module 'vscode'
Require stack:

• /Volumes/Data/github/flutter/fish-redux-template/out/extension.js
  at Function.Module._resolveFilename (internal/modules/cjs/loader.js:623:15)
  at Function.Module._load (internal/modules/cjs/loader.js:527:27)
  at Module.require (internal/modules/cjs/loader.js:681:19)
  at require (internal/modules/cjs/helpers.js:16:16)
  at Object. (/Volumes/Data/github/flutter/fish-redux-template/out/extension.js:11:16)
  at Module._compile (internal/modules/cjs/loader.js:771:14)
  at Object.Module._extensions..js (internal/modules/cjs/loader.js:785:10)
  at Module.load (internal/modules/cjs/loader.js:641:32)
  at Function.Module._load (internal/modules/cjs/loader.js:556:12)
  at Function.Module.runMain (internal/modules/cjs/loader.js:837:10) {
  code: 'MODULE_NOT_FOUND',
  requireStack: [
  '/Volumes/Data/github/flutter/fish-redux-template/out/extension.js'
  ]
  }
  Waiting for the debugger to disconnect...
  Error: Cannot find module 'vscode'
  Require stack:
• /Volumes/Data/github/flutter/fish-redux-template/out/extension.js
  at Function.Module._resolveFilename (internal/modules/cjs/loader.js:623:15)
  at Function.Module._load (internal/modules/cjs/loader.js:527:27)
  at Module.require (internal/modules/cjs/loader.js:681:19)
  at require (internal/modules/cjs/helpers.js:16:16)
  at Object. (/Volumes/Data/github/flutter/fish-redux-template/src/extension.ts:3:1)
  at Module._compile (internal/modules/cjs/loader.js:771:14)
  at Object.Module._extensions..js (internal/modules/cjs/loader.js:785:10)
  at Module.load (internal/modules/cjs/loader.js:641:32)
  at Function.Module._load (internal/modules/cjs/loader.js:556:12)
  at Function.Module.runMain (internal/modules/cjs/loader.js:837:10) {
  code: 'MODULE_NOT_FOUND',
  requireStack: [
  '/Volumes/Data/github/flutter/fish-redux-template/out/extension.js'
  ]
  }

[tianlinzx]

@huangjianke Any Idea ?