Violations failed to install

[barnabyaaron]

java.io.IOException: Failed to dynamically deploy this plugin
at hudson.model.UpdateCenter$InstallationJob._run(UpdateCenter.java:1384)
at hudson.model.UpdateCenter$DownloadJob.run(UpdateCenter.java:1162)
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
at hudson.remoting.AtmostOneThreadExecutor$Worker.run(AtmostOneThreadExecutor.java:110)
at java.lang.Thread.run(Unknown Source)
Caused by: java.io.IOException: Failed to install violations plugin
at hudson.PluginManager.dynamicLoad(PluginManager.java:509)
at hudson.model.UpdateCenter$InstallationJob._run(UpdateCenter.java:1380)
... 5 more
Caused by: java.io.IOException: Dependency maven-plugin (1.399) doesn't exist
at hudson.PluginWrapper.resolvePluginDependencies(PluginWrapper.java:540)
at hudson.PluginManager.dynamicLoad(PluginManager.java:499)
... 6 more

I have the Maven Integration plugin ('maven-plugin' version 2.13) installed

Is they any reason this would not install am I missing something ?