Some plugins after being installed are not picked up by Jenkins

[dcrissman]

Most of the plugins install just fine, but a few such as gerrit-trigger and sectioned-view do not seem to be picked up after a service reboot. The files seem to be correctly deployed to the 'plugins' directory and I have not yet identified a pattern for which plugins do or do not work properly, but it does appear to be consistent for a given plugin.

I am able to go into the Jenkins portal and install the plugin and it works just fine. But obviously that defeats the purpose.

[matthewbarr]

If i had to guess, you've got dependencies that aren't installed, and thus you won't load the plugin.

The plugin code doesn't actually know about the dependency tree.

Short term fix for you, go to the jenkins wiki, and find the dependencies. Add those to the plugins as well. In the case of gerrit-trigger:
https://wiki.jenkins-ci.org/display/JENKINS/Gerrit+Trigger
has dependencies on git, rebuild, and git-client.

The long term fix for this is to rebuild the plugin module into a package provider for Jenkins, as per #12