Using the GitHub Branch Source Plugin, sometimes the Jenkinsfile is not found


  • In a Pipeline (or Multibranch Pipeline) the Jenkinsfile is sometimes not found during repository scanning.
  • The issue is occurring sporadically.
  • You are using GitHub as SCM and the GitHub Branch Source Plugin.



This issue could be linked to a caching issue.
It is still under investigation but a workaround exists.


You should have a least have the version 2.4.4 of the GitHub Branch Source Plugin.
With this version of the plugin, you can activate the -DJENKINS_54126_WORKAROUND=true workaround flag that will:

  1. bypass the cache in case it is suspicious.
  2. log more information to help debug

In case this workaround is not enough, please open a case with CloudBees Support.
Follow instructions on How to add Java arguments to Jenkins for help on adding an argument to Jenkins.


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