AllUsers活动停止工作

Question

我创建了AllUsersActivity，它必须在其中获取并显示所有注册用户。但它崩溃并返回MainActivity。也许这行有错误：Picasso.get().load(user_image).into(image);如果需要查看更多代码，请写评论。import android.content.Context;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.support.v7.widget.LinearLayoutManager;import android.support.v7.widget.RecyclerView;import android.support.v7.widget.Toolbar;import android.view.View;import android.widget.TextView;import com.firebase.ui.database.FirebaseRecyclerAdapter;import com.google.firebase.database.DatabaseReference;import com.google.firebase.database.FirebaseDatabase;import com.squareup.picasso.Picasso;import de.hdodenhof.circleimageview.CircleImageView;public class AllUsersActivity extends AppCompatActivity {    private Toolbar mToolbar;    private RecyclerView allUsersList;    private DatabaseReference allDatabaseUserReference;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_all_users);        mToolbar = (Toolbar) findViewById(R.id.all_users_app_bar);        setSupportActionBar(mToolbar);        getSupportActionBar().setTitle("All Users");        getSupportActionBar().setDisplayHomeAsUpEnabled(true);        allUsersList = (RecyclerView) findViewById(R.id.all_users_list);        allUsersList.setHasFixedSize(true);        allUsersList.setLayoutManager(new LinearLayoutManager(this));        allDatabaseUserReference = FirebaseDatabase.getInstance().getReference().child("Users");    }