Project build error: Non-resolvable parent POM for org.springframework:gs-spring-boot:0.1.0: Failure to transfer org.springframework.boot:spring-boot-starter-parent:pom:1.3.6.RELEASE from <https://repo.maven.apache.org/maven2> was cached in the local repository, resolution will not be reattempted until the update interval of central has elapsed or updates are forced. Original error: Could not transfer artifact org.springframework.boot:spring-boot-starter-parent:pom:1.3.6.RELEASE from/to central (<https://repo.maven.apache.org/maven2>): Failed to authenticate with proxy and 'parent.relativePath' points at wrong local POM