unity build_error ai_generated true

IL2CPP error: System.InvalidCastException: Specified cast is not valid. Array type 'System.Int32[]' cannot be assigned to array of type 'System.Single[]'

ID: unity/il2cpp-array-type-mismatch

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80%Fix Rate

82%Confidence

1Evidence

2024-01-20First Seen

Version Compatibility

Version	Status	Introduced	Deprecated	Notes
Unity 2022.3	active	—	—	—
Unity 2023.2	active	—	—	—
IL2CPP 1.0	active	—	—	—

IL2CPP code stripping or type conversion issue where an int array is incorrectly cast to a float array, often due to unsafe code or marshaling.

generic

IL2CPP代码剥离或类型转换问题，其中整数数组被错误地转换为浮点数组，通常是由于不安全的代码或封送处理。

85% success Avoid direct array type conversion; use Array.ConvertAll() or LINQ Select() to create a new array: float[] floatArray = intArray.Select(i => (float)i).ToArray();
```
Avoid direct array type conversion; use Array.ConvertAll() or LINQ Select() to create a new array: float[] floatArray = intArray.Select(i => (float)i).ToArray();
```
70% success Mark the method with [Il2CppSetOption(Option.NullChecks, false)] to suppress the IL2CPP check, but only if the cast is safe (not recommended for production).
```
Mark the method with [Il2CppSetOption(Option.NullChecks, false)] to suppress the IL2CPP check, but only if the cast is safe (not recommended for production).
```

避免直接数组类型转换；使用Array.ConvertAll()或LINQ Select()创建新数组：float[] floatArray = intArray.Select(i => (float)i).ToArray();

使用[Il2CppSetOption(Option.NullChecks, false)]标记方法以抑制IL2CPP检查，但仅在转换安全时使用（不推荐用于生产）。

Common approaches that don't work:

50% fail
Disabling code stripping entirely may fix the cast but increases build size and hides the real issue; the cast is still incorrect.
75% fail
Adding explicit casts in C# code does not help because the error occurs during IL2CPP conversion of array types, not at runtime.