flutter:RenderFlex children have non-zero flex but incoming width constraints are unbounded._Crystal_xing的专栏

错误日志如下： 

════════ Exception caught by rendering library ═════════════════════════════════════════════════════
RenderFlex children have non-zero flex but incoming width constraints are unbounded.
The relevant error-causing widget was: 
  Row file:///Users/admin/Documents/project/GitlabFlutter/Flitm/lib/view/screen/record/record_top.dart:971:26
════════════════════════════════════════════════════════════════════════════════════════════════════

════════ Exception caught by rendering library ═════════════════════════════════════════════════════
RenderBox was not laid out: RenderFlex#c49f7 relayoutBoundary=up11 NEEDS-PAINT NEEDS-COMPOSITING-BITS-UPDATE
'package:flutter/src/rendering/box.dart':
Failed assertion: line 1785 pos 12: 'hasSize'
The relevant error-causing widget was: 
  Container file:///Users/admin/Documents/project/GitlabFlutter/Flitm/lib/view/screen/record/record_top.dart:969:17
════════════════════════════════════════════════════════════════════════════════════════════════════

════════ Exception caught by rendering library ═════════════════════════════════════════════════════
RenderBox was not laid out: RenderPadding#babc5 relayoutBoundary=up10 NEEDS-PAINT NEEDS-COMPOSITING-BITS-UPDATE
'package:flutter/src/rendering/box.dart':
Failed assertion: line 1785 pos 12: 'hasSize'════════ Exception caught by renderi