Cannot resolve symbol. Maven dependencies are in place but code is in red
<p>I imported project from gitHub <a href="https://github.com/eugenp/spring-security-registration" rel="nofollow noreferrer">https://github.com/eugenp/spring-security-registration</a>. It is maven based project for user management services using spring security.</p>

<p>I have done several times clean, install, site and reimported all dependencies. Everything is success, but my classes in red. When I enter "ALT+ENTER" it says, Add library to classpath. My IDE is Intellij</p>

<p><a href="https://i.stack.imgur.com/mMKJW.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/mMKJW.png" alt="enter image description here"></a></p>