关于simulink~*.mdl文件的警告！达人进……

yangfanxing__

做了一个simulink模型，包含多个子系统。
运行也正常，但其中两个字系统在“model browser”窗口是文件名显示为：“disabled link:*****(file path & file name)”;在command窗口出现以下警告:

Warning: Block diagram '*****(file name)' contains one or more disabled library links.
To find the disabled links use the Model Advisor.  The diagram has been saved
but may not contain what you intended.

倘若遇过类似情况可以祥解下~该警告及解决的方法？虾米谢过！