nei() was deprecated in igraph 2.1.0 and is now defunct.

[kuangquanxing]

What happens, and what did you expect instead?

nei() was deprecated in igraph 2.1.0 and is now defunct.
ℹ Please use .nei() instead.

To reproduce

nei() was deprecated in igraph 2.1.0 and is now defunct.

System information

No response

[maelle]

@kuangquanxing yes this is expected. How did you get the error? If you provide us with a reproducible example, we can help you fix it (it should only be a matter of replacing nei() with .nei(), unless the function is used in a package you don't own).