[WXTAG] [JSCORE] The slot <template> or <script type=“text/wxtag-template”> of <wx-open-launch-app> is missing

<wx-open-launch-app
    id="launch-btn"
    appid=""
    @launch="openLaunch"
    @error="openErr"
>
  <div v-is="'script'">
    <div v-is="'style'">
      .btn {
      padding: 12px
      }
    </div>
    <button class="btn">点击打开APP</button>
  </div>
</wx-open-launch-app>