The errors in contractor. Why?

namespace XYZ_System
{
    class FullTimeLectureClass : Lecturer
    {

        private double basicSalary;

        public Double _basicSalary
        {
            get { return basicSalary; }
            set { basicSalary = value; }
        }


        private Double allowance;

        public Double _allowance
        {
            get { return allowance; }
            set { allowance = value; }
        }
        
       public FullTimeLectureClass():base(){ }


        public FullTimeLectureClass(Double basicsalary):base(lectureId,name) 
        {
            this._basicSalary = basicsalary;
            this._allowance = GetAllowance();

        }

namespace XYZ_System
{
    public class Lecturer
    {

        private int lectureId;

        public int _lectureId
        {
            get { return lectureId; }
            set { lectureId = value; }
        }

        private String name;

        public String _name
        {
            get { return name; }
            set { name = value; }
        }

        private String email;

        public String _email
        {
            get { return email; }
            set { email = value; }
        }

        private int mobileNo;

        public int _mobileNo
        {
            get { return mobileNo; }
            set { mobileNo = value; }
        }


        private int landNo;

        public int _landNo
        {
            get { return landNo; }
            set { landNo = value; }
        }

        private String status;

        public String _status
        {
            get { return status; }
            set { status = value; }
        }

        private String address;

        public String _address
        {
            get { return address; }
            set { address = value; }
        }

        private String gender;

        public String _gender
        {
            get { return gender; }
            set { gender = value; }
        }


        private Double salary;

        public Double _salary
        {
            get { return salary; }
            set { salary = value; }
        }


       
        //constrator

        public Lecturer()
        {
     
        }
       public Lecturer(int id) //Custom Constructor - overloaded 
       {
           this.lectureId = id;
       }

        public Lecturer(int lectureId, String name, String email, int mobileNo, int landNo, String status, String address, String gender, Double salary)
        {
            this.lectureId = lectureId;
            this.name = name;
            this.email = email;
            this.mobileNo = mobileNo;
            this.landNo = landNo;
            this.status = status;
            this.address = address;
            this.gender = gender;
            this.salary = salary;
        }