在 app.json 中引入组件后，无法预览，但是真机调试没有问题。 [代码]"usingComponents"[代码][代码]: {[代码][代码]    [代码][代码]"c-course-card"[代码][代码]: [代码][代码]"/components/custom/course-card/index"[代码][代码],[代码][代码]    [代码][代码]"c-panel"[代码][代码]: [代码][代码]"/components/custom/panel/index"[代码][代码],[代码][代码]    [代码][代码]"i-button"[代码][代码]: [代码][代码]"/components/weapp/button/index"[代码][代码],[代码][代码]    [代码][代码]"i-grid"[代码][代码]: [代码][代码]"/components/weapp/grid/index"[代码][代码],[代码][代码]    [代码][代码]"i-grid-item"[代码][代码]: [代码][代码]"/components/weapp/grid-item/index"[代码][代码],[代码][代码]    [代码][代码]"i-grid-icon"[代码][代码]: [代码][代码]"/components/weapp/grid-icon/index"[代码][代码],[代码][代码]    [代码][代码]"i-grid-label"[代码][代码]: [代码][代码]"/components/weapp/grid-label/index"[代码][代码],[代码][代码]    [代码][代码]"i-row"[代码][代码]: [代码][代码]"/components/weapp/row/index"[代码][代码],[代码][代码]    [代码][代码]"i-col"[代码][代码]: [代码][代码]"/components/weapp/col/index"[代码][代码],[代码][代码]    [代码][代码]"i-cell-group"[代码][代码]: [代码][代码]"/components/weapp/cell-group/index"[代码][代码],[代码][代码]    [代码][代码]"i-cell"[代码][代码]: [代码][代码]"/components/weapp/cell/index"[代码][代码],[代码][代码]    [代码][代码]"i-icon"[代码][代码]: [代码][代码]"/components/weapp/icon/index"[代码][代码],[代码][代码]    [代码][代码]"i-badge"[代码][代码]: [代码][代码]"/components/weapp/badge/index"[代码][代码],[代码][代码]    [代码][代码]"i-input"[代码][代码]: [代码][代码]"/components/weapp/input/index"[代码][代码],[代码][代码]    [代码][代码]"van-cell-group"[代码][代码]: [代码][代码]"/vant-weapp/cell-group"[代码][代码],[代码][代码]    [代码][代码]"van-field"[代码][代码]: [代码][代码]"/vant-weapp/field"[代码][代码],[代码][代码]    [代码][代码]"van-button"[代码][代码]: [代码][代码]"/vant-weapp/button"[代码][代码],[代码][代码]    [代码][代码]"van-toast"[代码][代码]: [代码][代码]"/vant-weapp/toast"[代码][代码],[代码][代码]    [代码][代码]"van-panel"[代码][代码]: [代码][代码]"/vant-weapp/panel"[代码][代码],[代码][代码]    [代码][代码]"van-icon"[代码][代码]: [代码][代码]"/vant-weapp/icon"[代码][代码],[代码][代码]    [代码][代码]"van-rate"[代码][代码]: [代码][代码]"/vant-weapp/rate"[代码][代码],[代码][代码]    [代码][代码]"van-dialog"[代码][代码]: [代码][代码]"/vant-weapp/dialog"[代码][代码],[代码][代码]    [代码][代码]"van-checkbox"[代码][代码]: [代码][代码]"/vant-weapp/checkbox"[代码][代码],[代码][代码]    [代码][代码]"van-radio"[代码][代码]: [代码][代码]"/vant-weapp/radio"[代码][代码],[代码][代码]    [代码][代码]"van-radio-group"[代码][代码]: [代码][代码]"/vant-weapp/radio-group"[代码][代码]  [代码][代码]},[代码][图片] [图片] 手机机型是小米8，朋友的 ios 同样也不可以预览。