Arguments: 
  /Users/jiangxiang/.nvm/versions/node/v8.11.0/bin/node /usr/local/Cellar/yarn/1.5.1_1/libexec/bin/yarn.js add babel-core@7.0.0-bridge.0

PATH: 
  /Users/jiangxiang/.nvm/versions/node/v8.11.0/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin

Yarn version: 
  1.5.1

Node version: 
  8.11.0

Platform: 
  darwin x64

npm manifest: 
  {
    "name": "bb-plugin-add",
    "bin": {
      "bb-plugin-add": "./bin/index.js"
    },
    "version": "0.3.1",
    "description": "a self-defining module generator plugin for bb-mt",
    "main": "index.js",
    "scripts": {
      "build": "babel src --out-dir dist",
      "test": "jest ./test/*"
    },
    "repository": {
      "type": "git",
      "url": "git+https://github.com/xgfe/bb-plugin-add.git"
    },
    "author": "",
    "license": "ISC",
    "bugs": {
      "url": "https://github.com/xgfe/bb-plugin-add/issues"
    },
    "homepage": "https://github.com/xgfe/bb-plugin-add#readme",
    "devDependencies": {
      "babel-cli": "^6.26.0",
      "babel-preset-es2015": "^6.24.1",
      "jest": "^23.6.0"
    },
    "dependencies": {
      "babel-core": "^6.26.3",
      "babel-plugin-transform-class-properties": "^6.24.1",
      "babel-polyfill": "^6.26.0",
      "babel-preset-env": "^1.7.0",
      "babel-register": "^6.26.0",
      "chalk": "^2.4.1",
      "comment-regex": "^1.0.1",
      "fs-extra": "^6.0.1",
      "fs-readfile-promise": "^3.0.1",
      "fullname": "^3.3.0",
      "glob": "^7.1.2",
      "inquirer": "^6.0.0",
      "object-hash": "^1.3.0",
      "shelljs": "^0.8.2",
      "simple-git": "^1.96.0"
    },
    "peerDependencies": {
      "babel-polyfill": "^6.26.0",
      "babel-register": "^6.26.0"
    }
  }

yarn manifest: 
  No manifest

Lockfile: 
  No lockfile

Trace: 
  Error: Couldn't find package "babel-plugin-syntax-class-properties@^6.8.0" required by "babel-plugin-transform-class-properties@^6.24.1" on the "npm" registry.
      at new MessageError (/usr/local/Cellar/yarn/1.5.1_1/libexec/lib/cli.js:186:110)
      at PackageRequest.<anonymous> (/usr/local/Cellar/yarn/1.5.1_1/libexec/lib/cli.js:36274:17)
      at Generator.throw (<anonymous>)
      at step (/usr/local/Cellar/yarn/1.5.1_1/libexec/lib/cli.js:98:30)
      at /usr/local/Cellar/yarn/1.5.1_1/libexec/lib/cli.js:111:13
      at <anonymous>
      at process._tickCallback (internal/process/next_tick.js:188:7)