build problems

[wltony]

Element version

1. "babel-helper-vue-jsx-merge-props": "^1.0.1" in packages.json should be modified to
   "babel-helper-vue-jsx-merge-props": "^2.0.0"

2 .replace rm -rf with rimraf and cp -rf with cp-cli ,the build process will works fine on windows.

3 .cooking section bug?
[cooking] - info
Child scripts/cooking.conf.js:
Time: 16279ms
Asset Size Chunks Chunk Names
index.js 280 kB 0 [emitted] app

ERROR in ./packages/badge/src/main.vue

  3 |     <slot></slot>
  4 |     <sup
    |     ^
  5 |       v-text="content"

  Invalid self-closing tag: <sup
      v-text="content"
      class="el-badge__content"
      :class="{ 'is-fixed': $slots.default, 'is-dot': isDot }" />. This will be treated as the starting tag only in HTML5. Use <sup></sup> instead.