# Unknown Pipeline Node Step Error in Jenkins Executor

**URL:** <https://community.jenkins.io/t/unknown-pipeline-node-step-error-in-jenkins-executor/28713>\
**Category:** Ask a question\
**Tags:** question, pipeline\
**Created:** [March 23, 2025, 9:47am UTC](https://community.jenkins.io/t/unknown-pipeline-node-step-error-in-jenkins-executor/28713 "2025-03-23T09:47:47Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![yugannkt](https://avatars.discourse-cdn.com/v4/letter/y/e99b99/32.png) [@yugannkt](https://community.jenkins.io/u/yugannkt)\
**Post date:** [March 23, 2025, 9:47am UTC](https://community.jenkins.io/t/unknown-pipeline-node-step-error-in-jenkins-executor/28713/1 "2025-03-23T09:47:47Z")

</div>

I’m facing an issue where one of my Jenkins executors shows the error:

> **“Unknown pipeline node step”**

I don’t see any logs related to this issue. When I click **“Close”** , the executor stops, and a new one starts without any errors. This happens intermittently, and I’m unsure what’s causing it.

#### **Environment Details:**

- **Jenkins Version:** 2.49
- **Pipeline Type:** Declarative
- **Node Configuration:** controller-agent
- **Jenkins Logs Checked:** Yes

#### **What I Tried:**

1. Checked **Manage Jenkins \> System Log** (No relevant logs found).
2. Restarted the pipeline, and the issue disappeared.
3. Verified that nodes/executors are running and connected properly.
4. Ensured that all Jenkins plugins are up to date.

#### **Questions:**

- Has anyone faced a similar issue before?
- Where else can I check logs for more details?
- Could this be due to **agent disconnection** or a **temporary node issue**?

Any insights would be greatly appreciated! Thanks in advance.