GitHub webhook repo is unable to trigger jenkins pipeline

Question

Our Company used to self-host GitLab for source-code management and configured webhook on gitlab to trigger all the project pipelines on jenkins. Initially, the gitlab url was 'https://git.fulcrumdigital.com' and later for an upgraded version, they changed url to 'https://autobuild.fulcrumdigital.com'

Recently, we migrated to 'github.com' and created an organization. The source codes for various projects are found under this organization, which is private. Now, when I try to configure webhooks for these projects, I see that they deliver as intended to jenkins, but jenkins doesn't trigger the respective project's build. Instead, it gives out a message as shown below. jenkins-github webhook error I don't find any info regarding this webhook on global configuration page.

Here is a snapshot of jenkins logs jenkins logs

I don't face this webhook issue for newly created pipeline-projects on jenkins. I face this issue for older pipeline-projects that already had their webhook configured earlier for gitlab.

Help me to resolve this issue and make jenkins trigger build from github webhook for older pipeline-projects.

Answer 1

Did you try force regenerating the webhooks?

Go to Manage Jenkins > Configure System > GitHub plugin > Advance > Re-registers hooks for all jobs.