Unable to add Spring Artifact IDs to project - eclipse

Question

Can anyone tell me why I am unable to add the following dependencies to my pom.xml file?
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>${org.springframework.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${org.springframework.version}</version>
</dependency>
The moment I add the spring-web dependency the first error is displayed:
Failed to read artifact descriptor for org.springframework:spring-web:jar4.3.6.RELEASE.
The first two dependencies added just fine. No errors.
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>${org.springframework.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${org.springframework.version}</version>
</dependency>
Here is my entire pom.xml
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.we.springtest</groupId>
<artifactId>springtest</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>
<!-- Shared version number properties -->
<properties>
<org.springframework.version>4.3.6.RELEASE</org.springframework.version>
</properties>
<dependencies>
<!--Spring Framework-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>${org.springframework.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${org.springframework.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>${org.springframework.version}</version>
</dependency>
<!--
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${org.springframework.version}</version>
</dependency>
-->
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.1</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
</plugins>
</build>
</project>

Answer 1

If it's a Maven project in Eclipse do :
Right click on the project > Maven > Update Project
If it's a Java Project in Eclipse do :
mvn eclipse:clean eclipse:eclipse -U in your console
If it doesn't work, go in your Maven Repository and delete the folder org/springframework/spring-web/4.3.6.RELEASE

Answer 2

I'm just going to download them and install them manually. Just would have been nice to use maven.

Answer 3

I uninstalled Eclipse and reinstalled it. I also removed everything that was referencing Eclipse in my local profile. I'm able to add the dependencies. Not the best resolution but something in their was causing an issue.