Why does my app work on my samsung s5 but not a nexus phone?

public class MainActivity extends AppCompatActivity {

    private ImageView mMainMenuButton;


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        mMainMenuButton = (ImageView) findViewById(R.id.mainMenusButton);

        View.OnClickListener menuListener = new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                mMenuPage();
                //Toast.makeText(MainActivity.this, "You Did It!!!", Toast.LENGTH_LONG).show();
            }

        };
        mMainMenuButton.setOnClickListener(menuListener);
    }

    private void mMenuPage() {
        Intent menuPage = new Intent(this, MenuActivity.class);
        startActivity(menuPage);
    }


}