How to debug Jenkins error message “could not find

Question

I'm using Jenkins on Win7 and i've installed tomcat for ssh-agent plugin. And I could clone my GitLab project via git bash via ssh.
But if I build the project by Jenkins, it always says :

[ssh-agent] Using credentials IliptonChen(APRTest)
[ssh-agent] Looking for ssh-agent implementation...
[ssh-agent] FATAL: Could not find a suitable ssh-agent provider
FATAL:[ssh-agent] Unable to start agent

The full output text is here

Did I do anything wrong?

Answer 1

For windows, the plugin still requires Tomcat to be installed in both master and slave.

Answer 2

Check the version of your ssh-agent used by Jenkins.
This bug (for linux, but could apply to Windows too) reports (10 days ago, January 2014) this very same error message:
"JENKINS-20276: Native Library Error after upgrading ssh-agent from 1.3 to 1.4".

Downgrading to 1.3 resolves the issue.

Answer 3

Assuming you've installed Windows Git on Windows slave, it comes with ssh-agent binary (e.g. C:\Program Files\Git\usr\bin). Try adding its path to system variable PATH.

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Otherwise untick SSH Agent and choose the credentials by selecting Credentials from dropdown in Source Code Management section.

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Another way is to generate personal API token (OAuth) for that GitHub user and include that along with your repository address, e.g.

git clone https://[e-mail]/foo/bar