We have several jenkins pipeline jobs setup as "pipeline from scm" that checkout a jenkins file from github and runs it. There is sufficient try/catch based error handling inside the jenkinsfile to trap error conditions and notify the right channels.[This blog post](https://www.cloudbees.com/blog/sending-notifications-pipeline) goes into a quite a bit of depth about how to achieve this.

However, if there is issue fetching the jenkinsfile in the first place, the job fails silently. How does one generate notifications from general job launch failures before the pipeline is even started?