I completed a registration form application. It runs perfectly, however; it is now showing a build error. How can I solve this?
 @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_main);
            etusername=(EditText) findViewById(R.id.uname);
            etpassword=(EditText) findViewById(R.id.upassword);
            blogin=(Button) findViewById(R.id.blogin);
            registerlink=(Button) findViewById(R.id.register);
            blogin.setOnClickListener(this);
            registerlink.setOnClickListener(this);
        }
        @Override
        public void onClick(View v) {
            switch(v.getId()){
                case R.id.register:
                    startActivity(new Intent(this,RegisterActivity.class));
                    break;
                case R.id.blogin:
                    if(etusername.getText().toString().equals("admin") &&
                            etpassword.getText().toString().equals("admin")) {
                        startActivity(new Intent(this,HomeActivity.class));
                    }
                    else {
                        Toast.makeText(getApplicationContext(), "Invalid username/password", Toast.LENGTH_SHORT).show();
                    }
                        break;
            }
        }
    }
 
     
     
     
     
     
     
    