Error Messages:
[Vue warn]: Avoid mutating a prop directly since the value will be overwritten whenever the parent component re-renders. Instead, use a data or computed property based on the prop’s value. Prop being mutated: “placement”

Reason: Version issue

Solution:

1. Downgrade the version.

2. Add align=”center” in el-date-picker.

<el-date-picker
          :v-model="time"
          type="daterange"
          range-separator="to"
          start-placeholder="Start Date"
          end-placeholder="End date"
        >
</el-date-picker>