使用模拟机调试，点击跳转页面，Uncaught ReferenceError: start is not defined at :1，

下面这些报错都不知道在哪里报错，不是自己定义的方法，本人uniapp新手，求大神指点

01:08:50.657 Uncaught ReferenceError: start is not defined at :1
01:08:50.677 Uncaught ReferenceError: onHasParentDirectory is not defined at :2
01:08:50.698 Uncaught ReferenceError: addRow is not defined at :3
01:08:50.718 Uncaught ReferenceError: addRow is not defined at :4
01:08:50.739 Uncaught ReferenceError: addRow is not defined at :5
01:08:50.759 Uncaught ReferenceError: addRow is not defined at :6
01:08:50.781 Uncaught ReferenceError: addRow is not defined at :7
01:08:50.801 Uncaught ReferenceError: addRow is not defined at :8
01:08:50.820 Uncaught ReferenceError: addRow is not defined at :9
01:08:50.840 Uncaught ReferenceError: addRow is not defined at :10
01:08:50.861 Uncaught ReferenceError: addRow is not defined at :11
01:08:50.881 Uncaught ReferenceError: addRow is not defined at :12
01:08:50.902 Uncaught ReferenceError: addRow is not defined at :13
01:08:50.923 Uncaught ReferenceError: addRow is not defined at :14
01:08:50.943 Uncaught ReferenceError: addRow is not defined at :15
01:08:50.964 Uncaught ReferenceError: addRow is not defined at :16
01:08:50.984 Uncaught ReferenceError: addRow is not defined at :17
01:08:51.005 Uncaught ReferenceError: addRow is not defined at :18
01:08:51.025 Uncaught ReferenceError: addRow is not defined at :19
01:08:51.046 Uncaught ReferenceError: addRow is not defined at :20