Hello,
I have installed Jenkins on my Windows 10 machine, created a pipeline and run it. When it runs I get a message "ERROR: Unable to retrieve commit message" when I try to checkout the last commit. The commit number is correct and I can run the steps listed in the console output by hand without the error. Does anyone know why I am getting this error? I am using Jenkins 2.263.3 and Git plugin 4.5.2. Note that I get the same error whether I use a pipeline or freestyle project. I am not checking out the master branch, does that matter? The pipeline used (credentials and repo url XXXX'ed out): #!/usr/bin/env groovy pipeline { agent any stages { stage('Checkout') { steps { checkout([ $class: 'GitSCM', branches: [[name: 'feature/test-PM']], userRemoteConfigs: [[credentialsId: 'XXXXXX', url: 'XXXXXX']] ]) } } stage('Build') { steps { echo "Build is $BUILD_NUMBER : Node name is $NODE_NAME" } } stage('Test'){ steps { echo 'Testing...' } } stage('Deploy') { steps { echo 'Deploying...' } } } } The pipeline output (credentials and repo url XXXX'ed out): Running in Durability level: MAX_SURVIVABILITY [Pipeline] Start of Pipeline [Pipeline] node Running on Jenkins in C:\Windows\system32\config\systemprofile\AppData\Local\Jenkins\.jenkins\workspace\TestBuild1 [Pipeline] { [Pipeline] stage [Pipeline] { (Checkout) [Pipeline] checkout The recommended git tool is: NONE using credential XXXXXX Cloning the remote Git repository Cloning repository XXXXXX > git.exe init C:\Windows\system32\config\systemprofile\AppData\Local\Jenkins\.jenkins\workspace\TestBuild1 # timeout=10 Fetching upstream changes from XXXXXX > git.exe --version # timeout=10 > git --version # 'git version 2.30.0.windows.2' using GIT_ASKPASS to set credentials > git.exe fetch --tags --force --progress -- XXXXXX +refs/heads/*:refs/remotes/origin/* # timeout=10 > git.exe config remote.origin.url XXXXXX # timeout=10 > git.exe config --add remote.origin.fetch +refs/heads/*:refs/remotes/origin/* # timeout=10 Avoid second fetch > git.exe rev-parse "refs/remotes/origin/feature/test-PM^{commit}" # timeout=10 > git.exe rev-parse "feature/test-PM^{commit}" # timeout=10 Checking out Revision aeb4a265be3a3a7b1b5fc4dd655c9f0dc6f284fa (refs/remotes/origin/feature/test-PM) > git.exe config core.sparsecheckout # timeout=10 > git.exe checkout -f aeb4a265be3a3a7b1b5fc4dd655c9f0dc6f284fa # timeout=10 ERROR: Unable to retrieve commit message org.eclipse.jgit.errors.MissingObjectException: Missing unknown aeb4a265be3a3a7b1b5fc4dd655c9f0dc6f284fa at org.eclipse.jgit.internal.storage.file.WindowCursor.open(WindowCursor.java:135) at org.eclipse.jgit.lib.ObjectReader.open(ObjectReader.java:203) at org.eclipse.jgit.revwalk.RevWalk.parseAny(RevWalk.java:917) at org.eclipse.jgit.revwalk.RevWalk.parseCommit(RevWalk.java:827) at hudson.plugins.git.util.RevCommitRepositoryCallback.invoke(RevCommitRepositoryCallback.java:25) at hudson.plugins.git.util.RevCommitRepositoryCallback.invoke(RevCommitRepositoryCallback.java:13) at org.jenkinsci.plugins.gitclient.AbstractGitAPIImpl.withRepository(AbstractGitAPIImpl.java:29) at org.jenkinsci.plugins.gitclient.CliGitAPIImpl.withRepository(CliGitAPIImpl.java:84) at hudson.plugins.git.GitSCM.printCommitMessageToLog(GitSCM.java:1394) at hudson.plugins.git.GitSCM.checkout(GitSCM.java:1360) at org.jenkinsci.plugins.workflow.steps.scm.SCMStep.checkout(SCMStep.java:125) at org.jenkinsci.plugins.workflow.steps.scm.SCMStep$StepExecutionImpl.run(SCMStep.java:93) at org.jenkinsci.plugins.workflow.steps.scm.SCMStep$StepExecutionImpl.run(SCMStep.java:80) at org.jenkinsci.plugins.workflow.steps.SynchronousNonBlockingStepExecution.lambda$start$0(SynchronousNonBlockingStepExecution.java:47) at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) at java.util.concurrent.FutureTask.run(Unknown Source) at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source) > git.exe rev-list --no-walk aeb4a265be3a3a7b1b5fc4dd655c9f0dc6f284fa # timeout=10 [Pipeline] } [Pipeline] // stage [Pipeline] stage [Pipeline] { (Build) [Pipeline] echo Build is 37 : Node name is master [Pipeline] } [Pipeline] // stage [Pipeline] stage [Pipeline] { (Test) [Pipeline] echo Testing... [Pipeline] } [Pipeline] // stage [Pipeline] stage [Pipeline] { (Deploy) [Pipeline] echo Deploying... [Pipeline] } [Pipeline] // stage [Pipeline] } [Pipeline] // node [Pipeline] End of Pipeline Finished: SUCCESS -- You received this message because you are subscribed to the Google Groups "Jenkins Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to jenkinsci-users+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/jenkinsci-users/CAGu5ryKes3fD-mVZBOPsDBi50LgtcO0F%3D9UsUd_tHc%3Dae%3DPatg%40mail.gmail.com.