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Jenkins Blue Ocean not loading after initial install on existing Jenkins instance

I just installed Blue Ocean on an existing Jenkins instance that I have been using for years. The landing page is not loading, and I'm getting the following error, which I have been unsuccessful in finding an answer to on SO or otherwise googling. I'm on Jenkins build 2.107.3, Blue Ocean 1.6.1.

I was able to create a new pipeline successfully, but when I go back to this page, it never finishes loading.

Has anyone encountered this error, or has advice on how to go about debugging it?

Screenshot of Jenkins error

blueocean-core-js.js:57883 Error fetching page TypeError: Cannot read property 'self' of undefined at ActivityService.bunkerKey (blueocean-core-js.js:57207) at ActivityService.setItem (blueocean-core-js.js:57250) at executeAction (blueocean-core-js.js:40729) at ActivityService.res (blueocean-core-js.js:40701) at PipelineService._this.bunkerMapper (blueocean-core-js.js:58214) at PipelineService.setItem (blueocean-core-js.js:57249) at executeAction (blueocean-core-js.js:40729) at PipelineService.res (blueocean-core-js.js:40701) at blueocean-core-js.js:57268 at Array.map (<anonymous>) at PipelineService.setItems (blueocean-core-js.js:57267) at blueocean-core-js.js:57867 at executeAction (blueocean-core-js.js:40729) at res (blueocean-core-js.js:40701)

Solution

  • Yes - this is a bug with Jenkins (we need a null-check in that bunkerkey function for sure).

    I was able to resolve this by removing a legacy job that used a folder shortcut to 'LastSuccessFullBuild' that didn't exist. (I actually deleted the entire legacy/disabled job).

    You can determine which job is causing the js error by placing a breakpoint on at ActivityService.bunkerKey (blueocean-core-js.js:57207) in your browser tools and inspecting the 'data' object before it throws. Once you know the offending job, if you can delete it, you're done. Otherwise, you will likely have to run it/alter it to get it to generate the proper links.

    Enjoy!