DataTable for checkbox isant working

Hello everyone, my name is Taniguchi and i used a code to put checkbox but the table didnt appear and even the checkbox, please help. i would like to know here i am failing
code:

{% for result in my_query.results.entities %} {% endfor %}

Recurso	Função	Projeto	Tarefa	Data	Duração	Comentário
{{result.msdyn_bookableresource.name}}	{{result.msdyn_resourcecategory.name}}	{{result.msdyn_project.name}}	{{result.msdyn_projecttask.name}}	{{result.msdyn_date | date: 'dd/MM/yyyy'}}	{{result.msdyn_costquantity | round:2}}	{{result.msdyn_internalcomments}}

$(document).ready(function() { debugger; $('#example').DataTable( { columnDefs: [ { orderable: false, className: 'select-checkbox', targets: 0 } ], select: { style: 'os', selector: 'td:first-child' }, order: [[ 1, 'asc' ]] } ); } );