Error on build with Device Driver

[Soulbait]

I get the following error on 5 of my features at the time I compile my build.


Val0005: A condition for feature 'NETRA' may possibly set the InstallLevel for this feature to zero at runtime. If this feature gets enabled on install, you must author similar logic to ensure that it is also enabled in maintenance mode, otherwise in an upgrade the feature will be ignored.

Thanks

[David Thornley]

There is a help document that describes this warning. I would start by reading that.