我在安装VCLSkin控件时，编译之后出现这样的警告提示：
[warning]Unit'WinSinForm'implicitly imported into package 'WinSinD7'
[warning]Unit'WinSubClass'implicitly imported into package 'WinSinD7'
[warning]Unit'WinSkinData'implicitly imported into package 'WinSinD7'
[warning]Unit'WinSinDlg'implicitly imported into package 'WinSinD7'
[warning]Unit'WinSinMenu'implicitly imported into package 'WinSinD7'
[warning]Unit'SinRead'implicitly imported into package 'WinSinD7'
[warning]Unit'ImgUnit'implicitly imported into package 'WinSinD7'
[warning]Unit'WinSinIni'implicitly imported into package 'WinSinD7'
[warning]Unit'WinSinConvert'implicitly imported into package 'WinSinD7'
[warning]Unit'WinSinStore'implicitly imported into package 'WinSinD7'
请问各位大侠 ，这是什么原因啊？搞了一下午搞不定，SOS  SOS!!!!