I am a Codeigniter developer, i have create pdf download file using 'DOMPDF' library. The below menthion error through, how to resolve that issue?, help me.
Fatal error: Uncaught exception 'DOMPDF_Exception' with message 'Requested HTML document contains no data.' in /opt/lampp/htdocs/einfach_payroll/application/third_party/dompdf/include/frame_tree.cls.php:146 Stack trace: #0 /opt/lampp/htdocs/einfach_payroll/application/third_party/dompdf/include/dompdf.cls.php(451): Frame_Tree->build_tree() #1 /opt/lampp/htdocs/einfach_payroll/application/third_party/dompdf/include/dompdf.cls.php(591): DOMPDF->_process_html() #2 /opt/lampp/htdocs/einfach_payroll/application/controllers/payroll.php(1375): DOMPDF->render() #3 /opt/lampp/htdocs/einfach_payroll/application/controllers/payroll.php(1180): Payroll->generatePaySlipForEachEmployee(Array) #4 [internal function]: Payroll->generatePaySlipsForAllEmployees() #5 /opt/lampp/htdocs/einfach_payroll/system/core/CodeIgniter.php(359): call_user_func_array(Array, Array) #6 /opt/lampp/htdocs/einfach_payroll/index.php(202): require_once('/opt/lampp/htdo...') #7 {main} thrown in /opt/lampp/htdocs/einfach_payroll/application/third_party/dompdf/include/frame_tree.cls.php on line 146
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