https://nlopt.readthedocs.io/en/latest/NLopt_on_Windows/ the link : [https://github.com/stevengj/NLoptBuilder/releases/download/v2.6.2/NLopt.v2.6.2.x86_64-w64-mingw32.tar.gz](url) returns `Not Found`
https://nlopt.readthedocs.io/en/latest/NLopt_on_Windows/
the link :
https://github.com/stevengj/NLoptBuilder/releases/download/v2.6.2/NLopt.v2.6.2.x86_64-w64-mingw32.tar.gz
returns
Not Found