MiniProgramError\nnull is not an object (evaluating 't[0].position')\nTypeError: null is not an object (evaluating 't[0].position')\n@https://usr//app-service.js:5091:2948\n@https://lib/WAServiceMainContext.js:1:1517148\nat <SelectorQuery callback function>\nforEach@[native code]\n@https://lib/WAServiceMainContext.js:1:1517265\n@https://lib/WAServiceMainContext.js:1:1513644\n@https://lib/WASubContext.js:1:432351\nge@https://lib/WASubContext.js:1:3064