Lightweight Warning in solidworks

When I tried to open an large assembly in solid-works it gives me warning that the assembly can’t open because of lightweight parts... can any one help me solving this problem?

the problem appeared as shown in picture below

2 Answers

Google say´s "To start off go to Performance and uncheck automatically load components lightweight to turn that off, and then load the assembly in what's called a fully resolved state."

its already unchecked