authentication token not provided

[ayacoub1]

I am getting following error when trying to install npm:
npm ERR! 401 Unauthorized - GET https://npm.pkg.github.com/download/@uzufly/cesium-ifc-
viewer/0.11.0/75e0fd1d4673c5512996a8845b65328afad91655 - authentication token not provided

[matteo-pupa]

I am getting following error when trying to install npm:
npm ERR! 401 Unauthorized - GET https://npm.pkg.github.com/download/@uzufly/cesium-ifc-
viewer/0.11.0/75e0fd1d4673c5512996a8845b65328afad91655 - authentication token not provided

same!

[ted-dino]

any update guys? do we need to pay or do something to use the ifc-viewer package?

update: i found out that the package is available in Github Package. to setup i just followed this guide in the docs.