I know there are many related issues, but they all claim the issue was related to a plugin I don't have or they were related to older versions or they indicate a JavaScript error which I am not seeing. I was able to reproduce this on a fresh Jenkins install.

The first thing I did after getting Jenkins started was try to go to Manage Jenkins -> Configure System and it just gets stuck at LOADING.

This happens with the core plugins before I had a chance to add any plugins or define any builds at all. I hadn't even setup global security yet and it happens.

I have tried in both Chrome and Firefox and it is the same for both. I do have nginx reverse proxy, but I took that out of the picture and it still happens.

This code does generate a JavaScript error (hudson-behavior, line 932)

for (var depth=0; ; e=$(e).next()) {

Stacktrace:

Uncaught TypeError: Cannot read property 'next' of undefinedVM289 hudson-behavior.js:932 findEnd
VM289 hudson-behavior.js:949 
jenkinsRules.TR.rowvg-startbehavior.js:111 
(anonymous function)behavior.js:107 
(anonymous function)behavior.js:93 
Behaviour.applySubtreebehavior.js:76 
Behaviour.applybehavior.js:71 
(anonymous function)behavior.js:125 
Behaviour.addLoadEvent.window.onloadbehavior.js:125 
Behaviour.addLoadEvent.window.onloadbehavior.js:125 
Behaviour.addLoadEvent.window.onload

Since the initial error I tried updating all the core plugins that come installed with Jenkins, which I did and restarted Jenkins, but it still happens.

I have also tried `sudo service restart jenkins` – does not fix.

I have tailed `/var/log/jenkins/jenkins.log` but I see nothing of interest.

ubuntu@ip-172-31-18-106:/var/log/jenkins$ sudo service jenkins restart

• Restarting Jenkins Continuous Integration Server jenkins [ OK ]

ubuntu@ip-172-31-18-106:/var/log/jenkins$ sudo service jenkins status
Jenkins Continuous Integration Server is running with the pid 15797

ubuntu@ip-172-31-18-106:/var/log/jenkins$ tail -f jenkins.log

Apr 03, 2015 2:02:04 AM hudson.model.AsyncPeriodicWork$1 run
INFO: Started Download metadata
Apr 03, 2015 2:02:04 AM hudson.model.AsyncPeriodicWork$1 run
INFO: Finished Download metadata. 8 ms
Apr 03, 2015 2:02:05 AM org.jenkinsci.main.modules.sshd.SSHD start
INFO: Started SSHD at port 44274
Apr 03, 2015 2:02:05 AM jenkins.InitReactorRunner$1 onAttained
INFO: Completed initialization
Apr 03, 2015 2:02:05 AM hudson.WebAppMain$3 run
INFO: Jenkins is fully up and running
Apr 03, 2015 2:08:33 AM org.kohsuke.stapler.RequestImpl$TypePair convertJSON
WARNING: 'stapler-class' is deprecated: org.jenkinsci.plugins.BitbucketSecurityRealm
Apr 03, 2015 2:08:33 AM org.springframework.web.context.support.StaticWebApplicationContext prepareRefresh
INFO: Refreshing org.springframework.web.context.support.StaticWebApplicationContext@290e4e36: display name [Root WebApplicationContext]; startup date [Fri Apr 03 02:08:33 UTC 2015]; root of context hierarchy
Apr 03, 2015 2:08:33 AM org.springframework.web.context.support.StaticWebApplicationContext obtainFreshBeanFactory
INFO: Bean factory for application context [org.springframework.web.context.support.StaticWebApplicationContext@290e4e36]: org.springframework.beans.factory.support.DefaultListableBeanFactory@3057a971
Apr 03, 2015 2:08:33 AM org.springframework.beans.factory.support.DefaultListableBeanFactory preInstantiateSingletons
INFO: Pre-instantiating singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@3057a971: defining beans [filter,legacy]; root of factory hierarchy
Apr 03, 2015 2:08:33 AM org.kohsuke.stapler.RequestImpl$TypePair convertJSON
WARNING: 'stapler-class' is deprecated: hudson.markup.EscapedMarkupFormatter
Apr 03, 2015 2:17:51 AM org.kohsuke.stapler.RequestImpl$TypePair convertJSON
WARNING: 'stapler-class' is deprecated: org.jenkinsci.plugins.BitbucketSecurityRealm
Apr 03, 2015 2:17:51 AM org.springframework.web.context.support.StaticWebApplicationContext prepareRefresh
INFO: Refreshing org.springframework.web.context.support.StaticWebApplicationContext@14d3ba24: display name [Root WebApplicationContext]; startup date [Fri Apr 03 02:17:51 UTC 2015]; root of context hierarchy
Apr 03, 2015 2:17:51 AM org.springframework.web.context.support.StaticWebApplicationContext obtainFreshBeanFactory
INFO: Bean factory for application context [org.springframework.web.context.support.StaticWebApplicationContext@14d3ba24]: org.springframework.beans.factory.support.DefaultListableBeanFactory@5f8e789a
Apr 03, 2015 2:17:51 AM org.springframework.beans.factory.support.DefaultListableBeanFactory preInstantiateSingletons
INFO: Pre-instantiating singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@5f8e789a: defining beans [filter,legacy]; root of factory hierarchy
Apr 03, 2015 2:17:51 AM org.kohsuke.stapler.RequestImpl$TypePair convertJSON
WARNING: 'stapler-class' is deprecated: hudson.markup.EscapedMarkupFormatter