Flutter DartPad：如果控制台仅打印'；脚本错误'；？

例如：

---

如果我在DartPad中运行此命令，控制台只会显示

脚本错误

。如何获取更多信息（确切错误是什么？它位于何处？，…）？

尝试在Android Studio或VS代码等IDE中运行。由于第40行中的表，您似乎遇到了一个错误

════════ Exception caught by rendering library ═════════════════════════════════════════════════════
The following assertion was thrown during paint():
'package:flutter/src/rendering/table_border.dart': Failed assertion: line 217 pos 12: 'columns.isEmpty || (columns.first >= 0.0 && columns.last <= rect.width)': is not true.


Either the assertion indicates an error in the framework itself, or we should provide substantially more information in this error message to help you determine and fix the underlying cause.
In either case, please report this assertion by filing a bug on GitHub:
  https://github.com/flutter/flutter/issues/new?template=BUG.md

The relevant error-causing widget was: 
  Table file:///home/shaquib/AndroidStudioProjects/overflow_app/lib/main.dart:40:16
When the exception was thrown, this was the stack: 
#2      TableBorder.paint (package:flutter/src/rendering/table_border.dart:217:12)
#3      RenderTable.paint (package:flutter/src/rendering/table.dart:1175:14)
#4      RenderObject._paintWithContext (package:flutter/src/rendering/object.dart:2266:7)
#5      PaintingContext.paintChild (package:flutter/src/rendering/object.dart:186:13)
#6      RenderShiftedBox.paint (package:flutter/src/rendering/shifted_box.dart:72:15)

════════ 呈现库捕获到异常═════════════════════════════════════════════════════
在绘制（）期间引发了以下断言：
“package:flatter/src/rendering/table_border.dart”：失败的断言：第217行位置12:'columns.isEmpty | |（columns.first>=0.0&&columns.last尝试将代码包装在Try-catch块中，然后在控制台上打印错误

比如说,

try {
   Navigator.of(context).push(MaterialPageRoute(builder: (context) => ScreenTwo()));
} catch (e) {
   print(e);
}