Hello,
I am getting the same error now. I checked the ProGet site and it is available.
2021-07-08T14:40:53.0944924Z [command]F:\B\Agents\3\_work\_tool\node\14.17.1\x64\npm.cmd install @infragistics/igniteui-angular@12.0.5
2021-07-08T14:40:54.9348346Z npm ERR! code E404
2021-07-08T14:40:54.9379745Z npm ERR! 404
2021-07-08T14:40:54.9380764Z npm ERR! 404 '@infragistics/igniteui-angular@12.0.5' is not in the npm registry.
2021-07-08T14:40:54.9381653Z npm ERR! 404 You should bug the author to publish it (or use the name yourself!)
2021-07-08T14:40:54.9382533Z npm ERR! 404
2021-07-08T14:40:54.9383441Z npm ERR! 404 Note that you can also install from a
2021-07-08T14:40:54.9385153Z npm ERR! 404 tarball, folder, http url, or git url.
