please attach full polling log for diagnostic.

ERROR: Unable to retrieve changeset
hudson.plugins.git.GitException: Failed to find parent id.
at com.sonyericsson.hudson.plugins.gerrit.trigger.hudsontrigger.GerritTriggerBuildChooser.getFirstParent(GerritTriggerBuildChooser.java:156)
at com.sonyericsson.hudson.plugins.gerrit.trigger.hudsontrigger.GerritTriggerBuildChooser.prevBuildForChangelog(GerritTriggerBuildChooser.java:117)
at hudson.plugins.git.GitSCM.computeChangeLog(GitSCM.java:935)
at hudson.plugins.git.GitSCM.checkout(GitSCM.java:875)
at hudson.model.AbstractProject.checkout(AbstractProject.java:1412)
at hudson.model.AbstractBuild$AbstractBuildExecution.defaultCheckout(AbstractBuild.java:652)
at jenkins.scm.SCMCheckoutStrategy.checkout(SCMCheckoutStrategy.java:88)
at hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:557)
at hudson.model.Run.execute(Run.java:1679)
at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:46)
at hudson.model.ResourceController.execute(ResourceController.java:88)
at hudson.model.Executor.run(Executor.java:230)
Caused by: java.lang.UnsupportedOperationException
at org.jenkinsci.plugins.gitclient.RemoteGitImpl.getRepository(RemoteGitImpl.java:187)
at com.sonyericsson.hudson.plugins.gerrit.trigger.hudsontrigger.GerritTriggerBuildChooser.getFirstParent(GerritTriggerBuildChooser.java:146)
... 11 more

I have the same problem with Gerrit's SSH URL

11:04:53 Building remotely on bob-10.47 in workspace /home/jenkins/slave-root/workspace/gerrit_client_android_build_debug
11:04:53 
11:04:53 Deleting project workspace... done
11:04:53 
11:04:53 Cloning the remote Git repository
11:04:53 Cloning repository ssh://XXXXXXXXXX:29418/client.git
11:04:53 git --version
11:04:53 git version 1.8.4.2
11:05:15 ERROR: Couldn't find any revision to build. Verify the repository and branch configuration for this job.

Here suggest a downgrade:
https://groups.google.com/forum/#!topic/repo-discuss/BWjtSX07IpQ

I'm running in to the same issue (integration with Gerrit Trigger). This doesn't prevent checkout, it just causes Jenkins to clear the workspace so that my build completely starts over, which can take 45 minutes, when it could take 1 or 2. This is a significant problem for us. I'd rather not downgrade as I would have to reconfigure many jobs to specify the ref location (like I did when I upgraded from the older git client).

Fetching changes from the remote Git repository
Fetching upstream changes from git://repo.dev.systemware.com/xds
Checking out Revision 407f296d95c4626e65647e50573f6a2ad08b0eef (master)
ERROR: Unable to retrieve changeset
hudson.plugins.git.GitException: Failed to find parent id.
at com.sonyericsson.hudson.plugins.gerrit.trigger.hudsontrigger.GerritTriggerBuildChooser.getFirstParent(GerritTriggerBuildChooser.java:156)
at com.sonyericsson.hudson.plugins.gerrit.trigger.hudsontrigger.GerritTriggerBuildChooser.prevBuildForChangelog(GerritTriggerBuildChooser.java:117)
at hudson.plugins.git.GitSCM.computeChangeLog(GitSCM.java:935)
at hudson.plugins.git.GitSCM.checkout(GitSCM.java:875)
at hudson.model.AbstractProject.checkout(AbstractProject.java:1376)
at hudson.model.AbstractBuild$AbstractBuildExecution.defaultCheckout(AbstractBuild.java:655)
at jenkins.scm.SCMCheckoutStrategy.checkout(SCMCheckoutStrategy.java:88)
at hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:560)
at hudson.model.Run.execute(Run.java:1592)
at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:46)
at hudson.model.ResourceController.execute(ResourceController.java:88)
at hudson.model.Executor.run(Executor.java:237)
Caused by: java.lang.UnsupportedOperationException
at org.jenkinsci.plugins.gitclient.RemoteGitImpl.getRepository(RemoteGitImpl.java:187)
at com.sonyericsson.hudson.plugins.gerrit.trigger.hudsontrigger.GerritTriggerBuildChooser.getFirstParent(GerritTriggerBuildChooser.java:146)
... 11 more
Cleaning workspace

I observe the stacktrace but in same time correct hash was checkout from gerrit
I checked sources and see that it happens getFirstParent function.
Looks like this functionality touch only changelog but not code checkout. I could assume that
it happens because gerrit patchsets are placed in detached head and parent commit cannot
be simple found

This seems to be caused by JENKINS-20098, and fixed by https://github.com/jenkinsci/gerrit-trigger-plugin/commit/599cea84849432d3e12f427237025680e8276dce.

Since Leevar reports it is fixed by a change to the gerrit-trigger plugin, this issue is resolved.