Maybe I have not searched correctly but I don't know how to follow.
nwn-build don't work.

Windows

Install Natively

Install Chocolatey

Install with cmd.exe

@"%SystemRoot%\System32\WindowsPowerShell\v1.0\powershell.exe" -NoProfile -InputFormat None -ExecutionPolicy Bypass -Command "iex ((New-Object System.Net.WebClie

It seems that the unerf tool is testing the password's md5 instead of the decimal string corresponding to the password, which prevents it from extracting even when using a correct password.
ERF 2.2 Format
ERF Blowfish decryption / encryption steps
Attaching an example.
Created in Dragon Age: Origins