Spring toolkit spring mvc project - 22 problems immediately after creation

So, I downloaded and installed STS, and then created a new Spring MVC project. Right after that, sts warn me of 22 problems, here they are:

Description Resource    Path    Location    Type
Missing artifact aopalliance:aopalliance:jar:1.0    pom.xml /ContactManager line 1          Maven Dependency Problem
Missing artifact org.springframework:spring-beans:jar:3.1.1.RELEASE pom.xml /ContactManager line 1  Maven Dependency Problem
Missing artifact org.springframework:spring-context:jar:3.1.1.RELEASE   pom.xml /ContactManager line 1  Maven Dependency Problem
Missing artifact org.springframework:spring-aop:jar:3.1.1.RELEASE   pom.xml /ContactManager line 1  Maven Dependency Problem
ArtifactDescriptorException: Failed to read artifact descriptor for org.slf4j:slf4j-api:jar:1.6.6: ArtifactResolutionException: Failure to transfer org.slf4j:slf4j-api:pom:1.6.6 from http://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.slf4j:slf4j-api:pom:1.6.6 from/to central (http://repo.maven.apache.org/maven2): C:\Users\Skeeve\.m2\repository\org\slf4j\slf4j-api\1.6.6\slf4j-api-1.6.6.pom.ahc3656264e3b414ddf (    )   pom.xml /ContactManager line 1  Maven Dependency Problem
Missing artifact org.slf4j:jcl-over-slf4j:jar:1.6.6 pom.xml /ContactManager line 1  Maven Dependency Problem
Missing artifact org.aspectj:aspectjrt:jar:1.6.10   pom.xml /ContactManager line 1  Maven Dependency Problem
Missing artifact org.springframework:spring-web:jar:3.1.1.RELEASE   pom.xml /ContactManager line 1  Maven Dependency Problem
Missing artifact org.springframework:spring-context-support:jar:3.1.1.RELEASE   pom.xml /ContactManager line 1  Maven Dependency Problem
Missing artifact org.springframework:spring-webmvc:jar:3.1.1.RELEASE    pom.xml /ContactManager line 1  Maven Dependency Problem
Missing artifact org.springframework:spring-asm:jar:3.1.1.RELEASE   pom.xml /ContactManager line 1  Maven Dependency Problem
Missing artifact org.springframework:spring-expression:jar:3.1.1.RELEASE    pom.xml /ContactManager line 1  Maven Dependency Problem
Missing artifact org.springframework:spring-core:jar:3.1.1.RELEASE  pom.xml /ContactManager line 1  Maven Dependency Problem
Missing artifact junit:junit:jar:4.7    pom.xml /ContactManager line 1  Maven Dependency Problem
Missing artifact javax.servlet:jstl:jar:1.2 pom.xml /ContactManager line 1  Maven Dependency Problem
Missing artifact javax.servlet.jsp:jsp-api:jar:2.1  pom.xml /ContactManager line 1  Maven Dependency Problem
Missing artifact javax.servlet:servlet-api:jar:2.5  pom.xml /ContactManager line 1  Maven Dependency Problem
Missing artifact javax.inject:javax.inject:jar:1    pom.xml /ContactManager line 1  Maven Dependency Problem
Missing artifact log4j:log4j:jar:1.2.15 pom.xml /ContactManager line 1  Maven Dependency Problem
Missing artifact org.slf4j:slf4j-log4j12:jar:1.6.6  pom.xml /ContactManager line 1  Maven Dependency Problem

Description Resource    Path    Location    Type
The project cannot be built until build path errors are resolved    ContactManager      Unknown Java Problem

Description Resource    Path    Location    Type
The container 'Maven Dependencies' references non existing library 'C:\Users\Skeeve\.m2\repository\org\springframework\spring-context\3.1.1.RELEASE\spring-context-3.1.1.RELEASE.jar'   ContactManager      Build path  Build Path Problem

How can I solve this problem? Thanks you