message：Error: app.json: ["tabBar"]["list"][0]["iconPath"] 不应该以 ' ' 开头 appid: wx53b1dcef61be0761 openid: o6zAJs1Lk-8KWwmKi8lsCAsm7fiw ideVersion: 1.05.2104192 osType: win32-x64 time: 2021-04-27 10:48:09 附源代码 {    "pages":[      "pages/index/index",     "pages/student/student",     "pages/user/user",     "pages/teacher/teacher",     "pages/administrator/administrator",     "pages/psychologist/psychologist"   ],   "window":{     "backgroundTextStyle":"light",     "navigationBarBackgroundColor": "#fff",     "navigationBarTitleText": "架起心桥",     "navigationBarTextStyle":"black"   },  "tabBar": {     "color":"",     "selectedColor":"",     "backgroundColor": "",     "position": "bottom",     "borderStyle": "black",     "list":[       {         "pagePath": "pages/index/index",         "text": "首页",         "iconPath": " icons/home.png",         "selectedIconPath": "icons/home-o.png"       },       {         "pagePath": "pages/user/user",         "text": "我的",         "iconPath": " icons/me.png",         "selectedIconPath": "icons/me-o.png"       }     ]   },   "style": "v2",   "sitemapLocation": "sitemap.json" }