Failed to create maven project in Eclipse Java EE IDE - eclipse

Question

By default, the maven plugin is integrated with the latest Eclipse IDE versions (eg., Mars). However, on creating a Maven project it simply throws the following error:
Note: it doesn't undergo any proxy setup
Could not calculate build plan: Plugin
org.apache.maven.plugins:maven-resources-plugin:2.6 or one of its
dependencies could not be resolved: Failure to find
org.apache.maven.plugins:maven-resources-plugin:jar:2.6 in
http://localhost:8081/nexus/content/groups/public was cached in the
local repository, resolution will not be reattempted until the update
interval of nexus has elapsed or updates are forced Plugin
org.apache.maven.plugins:maven-resources-plugin:2.6 or one of its
dependencies could not be resolved: Failure to find
org.apache.maven.plugins:maven-resources-plugin:jar:2.6 in
http://localhost:8081/nexus/content/groups/public was cached in the
local repository, resolution will not be reattempted until the update
interval of nexus has elapsed or updates are forced
Tool used:
Eclipse Java EE IDE for Web Developers.
Version: Mars Release (4.5.0)

Answer 1

The following xml file did trick for me., to do so..
1| Create an xml file (settings.xml) in the following location,
C:\Users\username\.m2\settings.xml
2| Copy and paste the below xml snippet that contains multiple mirror tags in it.
3| Save the xml file.
<settings 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/settings-1.0.0.xsd">
<mirrors>
<mirror>
<id>ibiblio.org</id>
<url>http://mirrors.ibiblio.org/pub/mirrors/maven2</url>
<mirrorOf>central</mirrorOf>
<!-- United States, North Carolina -->
</mirror>
<mirror>
<id>lsu.edu</id>
<url>http://ibiblio.lsu.edu/main/pub/packages/maven2</url>
<mirrorOf>central</mirrorOf>
<!-- United States, Louisiana -->
</mirror>
<mirror>
<id>sateh.com</id>
<url>http://maven.sateh.com/repository</url>
<mirrorOf>central</mirrorOf>
<!-- The Netherlands, Amsterdam -->
</mirror>
<mirror>
<id>dotsrc.org</id>
<url>http://mirrors.dotsrc.org/maven2</url>
<mirrorOf>central</mirrorOf>
<!-- Denmark -->
</mirror>
<mirror>
<id>sunsite.dk</id>
<url>http://mirrors.sunsite.dk/maven2</url>
<mirrorOf>central</mirrorOf>
<!-- Denmark -->
</mirror>
<mirror>
<id>skynet.be</id>
<url>http://maven2.mirrors.skynet.be/pub/maven2</url>
<mirrorOf>central</mirrorOf>
<!-- Belgium -->
</mirror>
<mirror>
<id>cica.es</id>
<url>http://ftp.cica.es/mirrors/maven2</url>
<mirrorOf>central</mirrorOf>
<!-- Spain, Sevilla -->
</mirror>
<mirror>
<id>redv.com</id>
<url>http://mirrors.redv.com/maven2</url>
<mirrorOf>central</mirrorOf>
<!-- Shanghai, China -->
</mirror>
<!-- these just point to ibiblio.org -->
<mirror>
<id>ibiblio.net</id>
<url>http://www.ibiblio.net/pub/packages/maven2</url>
<mirrorOf>central</mirrorOf>
<!-- United States, North Carolina -->
</mirror>
<mirror>
<id>ggi-project.org</id>
<url>http://ftp.ggi-project.org/pub/packages/maven2</url>
<mirrorOf>central</mirrorOf>
<!-- The Netherlands, Amsterdam -->
</mirror>
</mirrors>
<profiles>
<profile>
<id>alwaysActiveProfile</id>
<repositories>
<repository>
<id>central</id>
<url>http://repo1.maven.org/maven2/</url>
<releases>
<enabled>true</enabled>
</releases>
<snapshots>
<enabled>true</enabled>
</snapshots>
</repository>
</repositories>
</profile>
</profiles>
<activeProfiles>
<activeProfile>alwaysActiveProfile</activeProfile>
</activeProfiles>
</settings>
4| Go to, Eclipse > Window > Preferences > Maven > User Settings
5| Check User Settings location

Answer 2

it was disturbing me too but someone gave me this solution and it worked
make sure you are online
Right-click your project
-Click on Maven
-Update project
-Force update snapshots/ Releases
-Ok