Core Data Migration Failed
iOS
结论摘要
Core Data Migration Failed indicates a storage failure on iOS that interrupts the current user flow.
现象表现
- Core Data Migration Failed appears in crash logs
- The app exits or the UI flow stops
常见原因
- Schema or persisted data is incompatible
- Read or write breaks integrity constraints
如何验证
快速修复
- Add guard checks and a safe fallback path
- Disable or rollback the risky code path behind a flag
长期修复
- Enforce contracts with types, runtime checks, and tests
- Refactor ownership and lifecycle boundaries to remove the failure mode
示例堆栈
Core Data Migration Failed in ProfileViewController.swift:42