gantt chart version : 20.1.47
file-manager version: 20.1.47
vue: 2.x
there was no error when using gantt chart alone
but if i add filemanager occur error
the code picture below is add filemanager before and after
when not occur error
path: @syncfusion\ej2-vue-gantt\src\gantt\columns.directive.js

when occur error
i used 20.1.47 version filemanager
path: @syncfusion\ej2-vue-gantt\src\gantt\columns.directive.js
devtool error
i just added filemanager, but strange code was added to the gantt chart related file and occur error