Pricing
00
In productionProintermediatePackaging

ros2 run cannot find the node

Point the entry point at the real module so the node runs.

Pairs with Packages and workspaces in Learn ROS 2 from the basics. Read the concept first, then diagnose it here.

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Operator report

`ros2 run my_pkg talker` fails because the entry point module does not exist.

Ubuntu 24.04, ROS 2 Jazzy, rclpy, a single-package browser workspace

01

System boundary

Trace only the relevant path.

3 nodes
  1. 01entry point→
  2. 02module path→
  3. 03ros2 runOUT
02

How this lab works

You diagnose it. No command list.

Open the repair workspace and gather your own evidence in a real terminal. No diagnostic commands are handed to you - finding the fault is the exercise. Stuck? Progressive hints unlock inside the workspace.

03

Verification

Pass more than the visible symptom.

4 checks
  • Entry point module exists
  • ros2 run starts the node
  • Hidden regression behavior
  • Root cause explanation