How do I see why a Jenkins build failed?

Question

I am trying to create my first Jenkins build job on a new Jenkins server. On the first two attempts the job failed; after I fixed those problems, the next build (which I requested manually by clicking "build now") failed - but there was no build error given.

The only useful information I see is "No changes" (and a mercurial revision ID) on the build status page.

How can I see why the build failed?

Answer 1

Never mind. I needed to click on the "Console output" link on the left.

Answer 2

Go to the project page and Click on the failed build number from the 'Build History'.

• Click on the 'Console Output', [Console Output gives the details like line by line build execution sequence with time stamp,Build Success messages, Build Failure messgaes, File location details at which ERROR has occured, ERROR details etc..,]

• Look for the details: File at which the ERROR has occured, ERROR details.

  You can still investigate...

• Click 'Back to Project'

• Then Click Workspace on the left and go to the specified file location. Ex: data-mart-db/target/ [You can find log files below the actual code files.]

• Open the log files one by one and go to the end of file(ctrl+end). Error details will be displayed, if the error has occured in that file.

  Fix the ERRORs in the local setup first & then do the checkins to the repository again.

  Happy Coding !!!