Caused by: io.realm.exceptions.RealmMigrationNeededException: Migration is required due to the

最新推荐文章于 2023-02-13 17:27:04 发布

原创最新推荐文章于 2023-02-13 17:27:04 发布 · 3.2k 阅读

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使用Realm数据库出现以下错误

Caused by: io.realm.exceptions.RealmMigrationNeededException: Migration is required due to the following errors:

 Caused by: io.realm.exceptions.RealmMigrationNeededException: Migration is required due to the following errors:
    - Primary Key for class 'DumplingsBean' has been added.
    - Property 'DumplingsBean.id' has been added.
    - Primary Key for class 'NoodleBean' has been added.
    - Property 'NoodleBean.id' has been added.

意思就是你在原有的数据库表加字段了，但是你要没有进行更新。或者是你项目运行在手机上已经生成了数据库表，但是你更新的APP中数据库表加字段了。形成冲突。

比如原有的是三个字段。运行完之后报错，缺少主键ID

修改之后的表

public class NoodleBean extends RealmObject {

    @PrimaryKey
    public int id;
    public String soup;
    public String meat;
    public String egg;

}

解决方法：

更新数据库

卸载重新安装（慎重）。。。。