diff --git a/app/src/main/java/com/example/nemophila/LoginActivity.java b/app/src/main/java/com/example/nemophila/LoginActivity.java
index cd63a63..6446c87 100644
--- a/app/src/main/java/com/example/nemophila/LoginActivity.java
+++ b/app/src/main/java/com/example/nemophila/LoginActivity.java
@@ -9,7 +9,9 @@
 import android.widget.TextView;
 
 import com.example.nemophila.entities.Account;
+import com.example.nemophila.entities.AccountJson;
 import com.example.nemophila.resources.AccountsRest;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 import retrofit2.Call;
 import retrofit2.Callback;
@@ -17,6 +19,7 @@
 import retrofit2.Retrofit;
 import retrofit2.converter.jackson.JacksonConverterFactory;
 
+@JsonIgnoreProperties(ignoreUnknown=true)
 public class LoginActivity extends AppCompatActivity {
 
     private Retrofit retrofit;
@@ -43,11 +46,11 @@
                 String pw = editpw.getText().toString();
 
                 // 通信
-                Call<Account> call = AccountsRest.getAccounts(uid,pw);
+                Call<AccountJson> call = AccountsRest.getAccounts(uid,pw);
 
-                call.enqueue (new Callback<Account>() {
+                call.enqueue (new Callback<AccountJson>() {
                     @Override
-                    public void onResponse(Call<Account> call, Response<Account> response) {
+                    public void onResponse(Call<AccountJson> call, Response<AccountJson> response) {
                         if (response.isSuccessful()) {
                             System.out.println("通信成功:changeBelongsAndMaster");
                             Intent intent = new Intent(LoginActivity.this,MainActivity.class);
@@ -56,15 +59,16 @@
                             System.out.println("通信可能：changeBelongsAndMaster: " + response.code());
                                 if (response.code() == 500){
                                     ((TextView) findViewById(R.id.textView)).setText("Invalid UserID or Password");
-                                }else if (response.code() == 404){
+                                } else if (response.code() == 404){
                                     ((TextView) findViewById(R.id.textView)).setText("Login failed. Please enter the correct credentials.");
                                 }
                         }
                     }
 
                     @Override
-                    public void onFailure(Call<Account> call, Throwable t) {
+                    public void onFailure(Call<AccountJson> call, Throwable t) {
                         System.out.println("通信失敗:changeBelongsAndMaster");
+                        System.out.println(t);
                     }
                 });
             }