Even better idea. Dont select by default any of the check boxs, and make it required.
That way the user will get a small warning to select one, and be hinted to either search for the package or choose Unknown.
Even better idea.
Dont select by default any of the check boxs, and make it required.
That way the user will get a small warning to select one, and be hinted to either search for the package or choose Unknown.