Neither the item's sequencer nor dedicated sequencer has been supplied to start item in m_bseq

In reply to ABD_91:

Hi,
I did create it in the agent. my code from the agent is as below.

agent.sv:

`include "uvm_macros.svh"
import uvm_pkg::*;
class Agent extends uvm_agent;
  `uvm_component_utils(Agent)

  uvm_analysis_port #(SequenceItem) analysis_port;

  Config m_config;
  Sequencer m_seqr;
  Driver m_drvr;
  Monitor m_mon;
  bit m_is_active;

  extern function new(string name, uvm_component parent);
  extern function void build_phase(uvm_phase phase);
  extern function void connect_phase(uvm_phase phase);
  extern function uvm_active_passive_enum get_is_active();
endclass: Agent

function uvm_active_passive_enum Agent::get_is_active();
  if(m_is_active == -1) m_is_active = m_config.is_active;
  return uvm_active_passive_enum'(m_is_active);
endfunction: get_is_active

function Agent::new(string name, uvm_component parent);
  super.new(name, parent);
  analysis_port = new("analysis_port",this);
endfunction: new

function void Agent::build_phase(uvm_phase phase);
  if(!uvm_config_db#(Config)::get(this,"","Config",m_config))
    `uvm_error(get_type_name(),$sformatf("config not found"))
  m_mon = Monitor::type_id::create("m_mon",this);
  if(get_is_active() == UVM_ACTIVE)
  begin
    m_drvr = Driver::type_id::create("m_drvr",this);
    m_seqr = Sequencer::type_id::create("m_seqr",this);
  end
endfunction: build_phase

function void Agent::connect_phase(uvm_phase phase);
  if(m_config.vif == null) 
    `uvm_fatal(get_type_name(),$sformatf("virtual interface is not set!"))
  m_mon.Intf_vi=m_config.vif;
  m_mon.analysis_port.connect(analysis_port);

  if(get_is_active() == UVM_ACTIVE)
  begin
    m_drvr.seq_item_port.connect(m_seqr.seq_item_export);
    m_drvr.Intf_vi = m_config.vif;
  end
endfunction: connect_phase

Thanks for your time.