fix: tabBar.list 可能为空容错处理

packages/uni-cli-shared/src/json/pages.ts

@@ -459,18 +459,16 @@ const DEFAULT_TAB_BAR: Partial<UniApp.TabBarOptions> = {
   iconWidth: '24px',
   spacing: '3px',
   height: TABBAR_HEIGHT + 'px',
+  list: [],
 }
 
 function normalizeTabBar(
   tabBar: UniApp.TabBarOptions,
   platform: UniApp.PLATFORM
 ) {
-  const { list, midButton } = tabBar
-  if (!list || !list.length) {
-    return
-  }
+  const { midButton } = tabBar
   tabBar = extend({}, DEFAULT_TAB_BAR, tabBar)
-  list.forEach((item) => {
+  tabBar.list.forEach((item) => {
     if (item.iconPath) {
       item.iconPath = normalizeFilepath(item.iconPath)
     }

packages/uni-cli-shared/src/json/theme.ts

@@ -56,7 +56,7 @@ function normalizeUniConfigThemeJsonIconPath(
 ) {
   // 处理 tabbar 下 list -> item -> iconPath、selectedIconPath; midButton -> backgroundImage 路径 / 不开头的情况
   const tabBar = pagesJson.tabBar
-  if (tabBar) {
+  if (tabBar && tabBar.list && tabBar.list.length) {
     tabBar.list.forEach((item) => {
       if (item.iconPath && item.iconPath.indexOf('@') === 0) {
         parseThemeJsonIconPath(themeConfig, item.iconPath.replace(/^@/, ''))