Javascript 延迟异常：这是未定义的PerfectScrollbar@webpack-VueJS中的内部

我将PerfectScrollbar导入到我的项目中，然后事情开始变得奇怪。经过几个小时的调试，我发现问题可能来自PerfectScrollbar。我会做错什么

错误如下：

jQuery.Deferred exception: this is undefined PerfectScrollbar@webpack-internal:///./node_modules/perfect-scrollbar/dist/perfect-scrollbar.js:1150:5
@webpack-internal:///./src/assets/js/apps/todoList.js:158:85
mightThrow@webpack-internal:///./node_modules/jquery/dist/jquery.js:3762:29
resolve/</process<@webpack-internal:///./node_modules/jquery/dist/jquery.js:3830:12
setTimeout handler*resolve/<@webpack-internal:///./node_modules/jquery/dist/jquery.js:3868:16
fire@webpack-internal:///./node_modules/jquery/dist/jquery.js:3496:31
fireWith@webpack-internal:///./node_modules/jquery/dist/jquery.js:3626:7
fire@webpack-internal:///./node_modules/jquery/dist/jquery.js:3634:10
fire@webpack-internal:///./node_modules/jquery/dist/jquery.js:3496:31