xcode 'RLMException',原因:'由于以下错误,需要迁移
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'RLMException', reason: 'Migration is required due to the following errors
提问by AnswerZhao
When i debug the app, i add a new property (@property NSString *haha;),but it show the following exception:
当我调试应用程序时,我添加了一个新属性(@property NSString *haha;),但它显示以下异常:
Terminating app due to uncaught exception 'RLMException', reason: 'Migration is required due to the following errors:
- Property 'haha' has been added to latest object model.'
But when i add the ignoredProperties, it works well:
但是当我添加 ignoreProperties 时,它运行良好:
+ (NSArray *)ignoredProperties {
return @[@"thead"];
}
Why? Thx.
为什么?谢谢。
回答by Dickson Leonard
When your app is live / launched you need to do migration when changing your db model. You can refer to Realm's migration docs
当您的应用程序上线/启动时,您需要在更改数据库模型时进行迁移。你可以参考 Realm 的迁移文档
Meanwhile I believe you're still in the process of developing your app. You can just delete / uninstall from your simulator or device and rerun your code
同时,我相信您仍在开发您的应用程序的过程中。您可以从模拟器或设备中删除/卸载并重新运行代码
回答by CodeBender
Because you need to delete the app and reinstall it to reflect the changes to your Realm objects.
因为您需要删除应用程序并重新安装它以反映对 Realm 对象的更改。