How to Install Maven manually in Eclipse

How to Install Maven manually:

I got this error problem while updating Maven Projects so this works for me.

[ERROR] Plugin org.apache.maven.plugins:maven-resources-plugin:2.5 or one of its dependencies could not be resolved: Failed to read artifact descriptor for org.apache.maven.plugins:maven-resources-plugin:jar:2.5: Failure to find org.apache.maven.plugins:maven-resources-plugin:pom:2.5 in 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 -> [Help 1]
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Had maven 3.0.5, eclipse 4.15.0 with JDK 1.8 installed. Computer sitting on internal network with proxy to the internet. Here’s what I did.

What is worked for me:

First download & install the missing plugin manually and add missing plugin: I visited to http://mvnrepository.com/artifact/org.apache.maven.plugins/maven-resources-plugin/2.5

1 Downloaded the maven-resources-plugin-2.5.jar and maven-resources-plugin-2.5.pom .

2.Copied the downloader folder directly into the maven repository of my computer into the correct folder ( ~/.m2/repository/org/apache/maven/plugins/maven-resources-plugin/2.5) and reran ‘mvn compile’. This solved my problem.

3. Right Click on main project in Eclipse and click on Maven and Update Projects.

Eclipse Environment

4.Click on Force updates of Snapshots/Releases.

5. Click on Ok button.

It will solves the problem of Pom.xml file.