Retrofit error: JSON document not fully consumed

问题:

Please I'm stock using retrofit for few days, I'm trying to parse the response to my POJO class, initially the error was setlenient to true wich i did and ended up here, no related questions here seem to solving my problem

JSON Response from server

{
"error": false,
"message": "Login successful",
"student": {
    "fullname": "Idris Muhammad",
    "matric": "u14/fns/csc/066",
    "department": "computer science",
    "gender": "male",
    "email": "[e-mail]",
    "phone": "08065468035",
    "level": 100,
    "faculty": "Applied Science and Technology"}
}

POJO Class public class LoginResponse {

@SerializedName("error")
private boolean error;
@SerializedName("message")
private String message;
@SerializedName("student")
private Student student;


public LoginResponse(boolean error, String message, Student student) {
    this.error = error;
    this.message = message;
    this.student = student;
}

public boolean isError() {
    return error;
}

public String getMessage() {
    return message;
}

public Student getStudent() {
    return student;
}

}

Restrift Interface

   @FormUrlEncoded
@POST("login")
Call<LoginResponse> studentLogin(
        @Field("matric") String matric,
        @Field("password") String password
);

My OnclickListener

     btnLogin.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {



            Call<LoginResponse> call = RetroClient.getInstance().getAPI().studentLogin(id.getText().toString(),password.getText().toString() );
            call.enqueue(new Callback<LoginResponse>() {
                @Override
                public void onResponse(Call<LoginResponse> call, Response<LoginResponse> response) {
                    LoginResponse loginResponse = response.body();
                    if (loginResponse.isError()){
                        Toast.makeText(getBaseContext(), "Error", Toast.LENGTH_LONG).show();
                        return;
                    }else {

                        String matnum []= id.getText().toString().split("/");

                        SharedPrefManager sharedPrefManager = SharedPrefManager.getInstance(getBaseContext());

                        sharedPrefManager.storeUserType(SharedPrefManager.USER_TYPE_STUDENT);
                        sharedPrefManager.storeDepartment(matnum[2]);
                        sharedPrefManager.storeFaculty(matnum[1]);
                        sharedPrefManager.storeLevel(loginResponse.getStudent().getLevel());
                        sharedPrefManager.storeActivation(true);
                        sharedPrefManager.storeUserType(SharedPrefManager.USER_TYPE_STUDENT);

                        Intent intent = new Intent(getBaseContext(), MainActivity.class);
                        intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
                        startActivity(intent);

                    }
                }

                @Override
                public void onFailure(Call<LoginResponse> call, Throwable t) {
                    Toast.makeText(getBaseContext(), "Error "+t.getMessage(), Toast.LENGTH_LONG).show();

                }
            });


        }
    });

This is my Student class

public class Student {
@SerializedName("fullname")
private String fullname;

@SerializedName("matric")
private String matric;

@SerializedName("department")
private String department;

@SerializedName("gender")
private String gender;

@SerializedName("email")
private String email;

@SerializedName("phone")
private String phone;

@SerializedName("level")
private String level;

@SerializedName("faculty")
private String faculty;

public Student(String fullname, String matric, String department, String gender, String email, String phone, String level, String faculty) {
    this.fullname = fullname;
    this.matric = matric;
    this.department = department;
    this.gender = gender;
    this.email = email;
    this.phone = phone;
    this.level = level;
    this.faculty = faculty;
}

public String getFullname() {
    return fullname;
}

public String getMatric() {
    return matric;
}

public String getDepartment() {
    return department;
}

public String getGender() {
    return gender;
}

public String getEmail() {
    return email;
}

public String getPhone() {
    return phone;
}

public String getLevel() {
    return level;
}

public String getFaculty() {
    return faculty;
}

}

my logcat

2018-11-29 14:12:59.244 4775-4775/com.ietech.ibbumobile E/RETROFIT: JSON document was not fully consumed.