Spectre.hbnoise warning

Hello

I am using virtuoso custom IC design environment version IC6.1.7-64b.500.12.

Somehow when at startup the configuration variables are loaded from .cdsenv, it issues the following warning messages.

*WARNING* Line ignored: ((spectre.hbnoise) noiseoutUI radio "USB")

*WARNING* Variable must be of type int, float, string, cyclic or toggle

*WARNING* Line ignored: ((spectre.pnoise) noiseoutUI radio "USB")

*WARNING* Variable must be of type int, float, string, cyclic or toggle

I am not evening doing any simulation.

Thanks for your help.