Need help with Child Theme

I even tried following this tutorial http://wp.tutsplus.com/tutorials/theme-development/child-themes-basics-and-creating-child-themes-in-wordpress/ from reading on here but it still doesn’t work. 

In my childtheme folder styles.css     @import url(“../funding_press/style.css”);

when ever I try to switch to child theme  I would get  The active theme is broken. Reverting to the default theme.

Could the problem be cause the original theme css have

@import url(‘css/bootstrap.css’);
@import url(‘css/bootstrap-responsive.css’);
@import url(‘css/main.css’);

??