Code Signature Invalid

结论摘要

Code Signature Invalid indicates a security failure on iOS that interrupts the current user flow.

现象表现

• Code Signature Invalid appears in crash logs
• The app exits or the UI flow stops

常见原因

1. Permission or policy denies the operation
2. Origin, signature, or capability is not trusted

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

Code Signature Invalid in ProfileViewController.swift:42

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