Android：Realm Migration Exception

Question

我正在使用等级版本：编译＆＃39; io.realm：realm-android：0.87.5＆＃39;。

在我的应用程序文件中，我编写了如下代码

 RealmConfiguration realmConfiguration = new RealmConfiguration.Builder(this)
                                            .schemaVersion(2)
                                            .migration(new Migration())
                                            .build();


        Realm.setDefaultConfiguration(realmConfiguration);

在我的活动/片段中，我按如下方式打开领域实例

@Override
    public void onStart(){
        super.onStart();
        realm = Realm.getDefaultInstance();
    }


@Override
    public void onStop(){
        super.onStop();
        realm.close();
    }

但我总是遇到如下例外

 03-10 14:55:32.385 7015-7015/com.workoutguru.workoutcash E/AndroidRuntime: FATAL EXCEPTION: main
    03-10 14:55:32.385 7015-7015/com.workoutguru.workoutcash E/AndroidRuntime: Process: com.workoutguru.workoutcash, PID: 7015
    03-10 14:55:32.385 7015-7015/com.workoutguru.workoutcash E/AndroidRuntime: java.lang.IllegalArgumentException: Configurations cannot be different if used to open the same file. 
    03-10 14:55:32.385 7015-7015/com.workoutguru.workoutcash E/AndroidRuntime: Cached configuration: 
    03-10 14:55:32.385 7015-7015/com.workoutguru.workoutcash E/AndroidRuntime: realmFolder: /data/data/com.workoutguru.workoutcash/files
    03-10 14:55:32.385 7015-7015/com.workoutguru.workoutcash E/AndroidRuntime: realmFileName : default.realm
    03-10 14:55:32.385 7015-7015/com.workoutguru.workoutcash E/AndroidRuntime: canonicalPath: /data/data/com.workoutguru.workoutcash/files/default.realm
    03-10 14:55:32.385 7015-7015/com.workoutguru.workoutcash E/AndroidRuntime: key: [length: 0]
    E/AndroidRuntime: schemaVersion: 2
     E/AndroidRuntime: migration: E/AndroidRuntime: 
    durability: FULL
     schemaMediator: io.realm.DefaultRealmModuleMediator@a3db7d18

我的迁移文件代码如下

public class Migration implements RealmMigration {

    @Override
    public void migrate(final DynamicRealm realm, long oldVersion, long newVersion){

        RealmSchema schema = realm.getSchema();

        if(oldVersion == 1){
            RealmObjectSchema sweatPointSchema = schema.get("UserInfoDB");
                    sweatPointSchema.addField("sweatPoints",Integer.class);

            oldVersion++;
        }

        if(oldVersion == 2){
            RealmObjectSchema teamInfoSchema = schema.get("TeamInfoDB");
                    teamInfoSchema.addField("teamDescription",String.class);

            oldVersion ++;
        }
    }
}