We recently changed our internal network IPs and I believe this has caused Jenkins to only list "none" under the SCM options in the job config. Previously the jobs were configured to pull from a couple SVN plugins.

Also when accessing the job config page, I can see the following error in the log file:
WARNING: Caught exception evaluating: it.isTagged(). Reason: java.lang.NullPointerException
java.lang.NullPointerException
at hudson.scm.SubversionTagAction.isTagged(SubversionTagAction.java:157)
at sun.reflect.GeneratedMethodAccessor73.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:616)
...
Anyone have any ideas of how to fix this? I found some of the old IPs in /var/lib/jenkins/hudson.scm.SubversionSCM.xml and changed them to the new IP and restarted/reloaded, but that did not fix this. The same screen shows up when adding a new job as well. I also noticed there is a .subversion directory in /var/lib/jenkins too.