Android Studio - 非法字符8204错误

Question

出于某种原因,在重建我的项目后,我得到了一个非法的字符错误,但我的代码中的任何内容都没有用红色加下划线.有人可以告诉我有什么问题以及如何解决？

错误

illegal character: \8204

WCBankActivity.java

import android.content.Intent;
import android.os.Bundle;
import android.support.v4.app.FragmentTransaction;
import android.support.v7.app.ActionBarActivity;

public class WCBankActivity extends ActionBarActivity {

    public final static String EXTRA_MESSAGE = "Station_key";

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.fragment_wc_bank);

        if (savedInstanceState == null) {
            Intent intent = getIntent();
            String station = intent.getStringExtra(WCBankActivity.EXTRA_MESSAGE);

            FragmentWCBank newFragment = new FragmentWCBank();
            FragmentTransaction transaction = this.getSupportFragmentManager().beginTransaction();?
            transaction.replace(R.id.detail_container, newFragment);
            transaction.commit();
        }
    }
}

Answer 1

尝试更改编码,查看图片: