1、Help——>Install New SoftWare
2、https://otto.takari.io/content/sites/m2e.extras/m2eclipse-mavenarchiver/0.17.2/N/LATEST/
3. After the installation is complete, restart Eclipse.
Easy solution: downgrade to 2.6 version
Indeed a possible solution is to get back to version 2.6, a further update of the project would then remove any error. However, that's not the ideal scenario and a better solution is possible: update the m2e extensions (Eclipse Maven integration).
Better solution: update Eclipse m2e extensions
From Help > Install New Software.., add a new repository (via the Add.. option), pointing to any of the following URLs:
-
https://otto.takari.io/content/sites/m2e.extras/m2eclipse-mavenarchiver/0.17.2/N/LATEST/or -
http://repo1.maven.org/maven2/.m2e/connectors/m2eclipse-mavenarchiver/0.17.2/N/LATEST/
Then follow the update wizard as usual. Eclipse would then require a restart. Afterwards, a furtherUpdate Project.. on the concerned Maven project would remove any error and your Maven build could then enjoy the benefit of the latest maven-jar-plugin version.