Unindexed remote maven repositories in IntelliJ IDEA 14

Question

I\'ve imported an existing Gradle project to IntelliJ IDEA. I keep getting a notification:

Unindexed remote maven repositories found.

Answer 1

Similar to @osexp2003, I deleted my repository folder under .m2 and restart intellij.

IntelliJ -> Preferences -> Build, Execution, Deployment -> Repositories -> selected http://repo1.maven.org/maven2 and clicked on update in the dialog.