IDEA using Jquery solve the $ symbol, but obviously still not able to find the import symbol.

unresolved function or method $ () solution

Himself in the pages of the document have been introduced jquery, but there is always below the $ symbol suggesting that not symbols.

Solutions are as follows:

Language & Frameworks> - the idea -> file-settings -> Libraries
found in javaScript

mac is set to open this

selection Download

Find jquery

After the download is complete, if still not solve the problem, reboot IDEA can be solved.