IL2CPP-404 unity runtime_error ai_generated true

IL2CPP error: Stack overflow in method 'PlayerController.Update' due to infinite recursion

ID: unity/il2cpp-stack-overflow-recursive

Also available as: JSON · Markdown · 中文
93%Fix Rate
90%Confidence
1Evidence
2025-01-10First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
Unity 2022.3 active — — —
Unity 2023.1 active — — —
Unity 2023.2 active — — —

Root Cause

A recursive method call without a base case, or an unintended circular reference, causes the call stack to exceed the maximum depth.

generic

中文

没有基本情况的递归方法调用，或意外的循环引用，导致调用堆栈超过最大深度。

Official Documentation

https://docs.unity3d.com/Manual/IL2CPP-Optimizing.html

Workarounds

  1. 95% success Identify and fix the recursion by adding a base case or using an iterative approach. For example, change a recursive function to a loop. 
    Identify and fix the recursion by adding a base case or using an iterative approach. For example, change a recursive function to a loop.
  2. 85% success Add a recursion depth counter to break the loop after a certain number of calls. 
    Add a recursion depth counter to break the loop after a certain number of calls.

中文步骤

  1. 通过添加基本情况或使用迭代方法来识别并修复递归。例如，将递归函数更改为循环。
  2. 添加递归深度计数器，在达到一定调用次数后中断循环。

Dead Ends

Common approaches that don't work:

  1. Increase the stack size in Player Settings under 'IL2CPP Code Generation'. 80% fail

    Increasing stack size only delays the crash; the underlying infinite recursion is not fixed.

  2. Comment out the entire Update method. 50% fail

    This removes functionality and does not address the recursion in other methods.