It has been 2 days that this error appears when trying to export to pdf the SalesByCustomer Example with cloudExport. Before, it worked perfectly. Here is the code :

//index.php
require_once "../koolreport/autoload.php";
require_once "SalesByCustomer.php";
$salesbycustomer = new SalesByCustomer;
$salesbycustomer->run()
    ->cloudExport("SalesByCustomer")
    ->chromeHeadlessio("myToken")
    ->pdf()
    ->toBrowser("myreport.pdf", true);

// SalesByCustomer.php
require_once "../koolreport/autoload.php";

//Specify some data processes that will be used to process
use \koolreport\processes\Group;
use \koolreport\processes\Sort;
use \koolreport\processes\Limit;

//Define the class
class SalesByCustomer extends \koolreport\KoolReport
{
    use \koolreport\clients\Bootstrap;
    use \koolreport\cloudexport\Exportable;
    protected function settings()
    {
        //Define the "sales" data source which is the orders.csv 
        return array(
            "dataSources"=>array(
                "sales"=>array(
                    "class"=>'\koolreport\datasources\CSVDataSource',
                    "filePath"=>"orders.csv",
                ),        
            )
        );
    }
  
    protected function setup()
    {
        //Select the data source then pipe data through various process
        //until it reach the end which is the dataStore named "sales_by_customer".
        $this->src('sales')
        ->pipe(new Group(array(
            "by"=>"customerName",
            "sum"=>"dollar_sales"
        )))
        ->pipe(new Sort(array(
            "dollar_sales"=>"desc"
        )))
        ->pipe(new Limit(array(10)))
        ->pipe($this->dataStore('sales_by_customer'));
    }
}

<?php
//SalesByCustomer.view.php 
    use \koolreport\widgets\koolphp\Table;
    use \koolreport\widgets\google\BarChart;
?>

<div class="report-content">
    <div class="text-center">
        <h1>Sales By Customer</h1>
        <p class="lead">This report shows top 10 sales by customer</p>
    </div>

    <?php
    BarChart::create(array(
        "dataStore"=>$this->dataStore('sales_by_customer'),
        "width"=>"100%",
        "height"=>"500px",
        "columns"=>array(
            "customerName"=>array(
                "label"=>"Customer"
            ),
            "dollar_sales"=>array(
                "type"=>"number",
                "label"=>"Amount",
                "prefix"=>"$",
                "emphasis"=>true
            )
        ),
        "options"=>array(
            "title"=>"Sales By Customer",
        )
    ));
    ?>
    <?php
    Table::create(array(
        "dataStore"=>$this->dataStore('sales_by_customer'),
            "columns"=>array(
                "customerName"=>array(
                    "label"=>"Customer"
                ),
                "dollar_sales"=>array(
                    "type"=>"number",
                    "label"=>"Amount",
                    "prefix"=>"$",
                )
            ),
        "cssClass"=>array(
            "table"=>"table table-hover table-bordered"
        )
    ));
    ?>
</div>

I have the same problem!

Someone could help us please !

Hi David, Thank you so much, it works.