属性配置中所有 switch 类型的元素都不能正常渲染

从左边拖入组件（比如input框）控制台会报这个错误，右边属性配置中所有 switch 类型的元素都不能正常渲染，是什么原因啊?
![输入图片说明](https://images.gitee.com/uploads/images/2020/1217/194740_a1378862_659833.png "屏幕截图.png")
我的工程 依赖

```
"dependencies": {
    "axios": "0.17.1",
    "babel-plugin-component": "0.10.1",
    "babel-polyfill": "6.26.0",
    "element-ui": "2.8.2",
    "f-render": "4.12.1",
    "gulp": "4.0.2",
    "gulp-concat": "2.6.1",
    "gulp-load-plugins": "2.0.5",
    "gulp-replace": "1.0.0",
    "gulp-shell": "0.8.0",
    "lodash": "4.17.5",
    "node-sass": "4.13.1",
    "npm": "^6.9.0",
    "sass-loader": "6.0.6",
    "svg-sprite-loader": "3.7.3",
    "vue": "2.5.16",
    "vue-cookie": "1.1.4",
    "vue-ele-form": "^0.8.55",
    "vue-ele-form-image-uploader": "^0.1.9",
    "vue-router": "3.0.1",
    "vuex": "3.0.1"

},
```
我的代码
```
  <f-render ref="frender"
              @save="handleSave"
              :loading="loading"
              v-model="formData"
              :saveFormat="saveFormat"
              height="calc(100vh - 60px)"
              :config="formConfig"
              :operations="operations"
              :options-fn="$http.get"
              :comps="comps"
              :isShowSubmitBtn="false"
              :isShowBackBtn="false"
              :isShowCancelBtn="true"
              :mock="true"
    >

</f-render>
```

张超杰/f-render

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