FAQ & Troubleshooting
No Plans Found
Symptom: The viewer shows an empty list or "No plans found" message.
Solutions:
Check if the plans directory exists:
bashls ~/.claude/plans/If the directory doesn't exist, create it:
bashmkdir -p ~/.claude/plansThen create some plans in Claude Code.
Verify the directory path: If your Claude installation uses a non-standard location, specify it:
bashclaude-plan-viewer --claude-dir /path/to/.claudeCheck file permissions: Ensure your user has read access to the plans directory:
bashls -la ~/.claude/plans/
Server Started on Unexpected Port
Symptom: The server starts on a port other than 3000.
Explanation: Claude Plan Viewer automatically finds an available port if the default (3000) is in use. Check the startup message for the actual URL.
Solution: To use a specific port:
claude-plan-viewer --port 8080TIP
Always use the URL printed in the terminal when the server starts, as the port may vary.
Plans Not Updating
Symptom: New or modified plans don't appear in the viewer.
Solutions:
Force a refresh using the API (replace port with your actual port):
bashcurl -X POST http://localhost:3000/api/refreshRestart the server — file watching may have encountered an issue.
Check if using
--from-file— when loading from a JSON file, live updates are disabled. Note that calling the refresh API in this mode will reload from disk, replacing your JSON snapshot.
"Open in Editor" Not Working
Symptom: Clicking "Open in Editor" does nothing or shows an error.
Solutions:
Check your default app for
.mdfiles:- macOS: Right-click a
.mdfile → Get Info → Open With - Linux: Check your
xdg-mimesettings - Windows: Right-click → Open With → Choose default app
- macOS: Right-click a
Verify the file path exists: If you moved or deleted the plan file, the open action will fail.
When using
--from-file: The file paths in the JSON may not match your current machine. Open in editor only works when the original files are accessible.
Permission Denied
Symptom: Errors about permission when starting the server or accessing plans.
Solutions:
Check directory permissions:
bashchmod 755 ~/.claude chmod 644 ~/.claude/plans/*.mdCheck if another process has locked the files.
Server Not Accessible from Other Devices
Symptom: You can access the viewer on localhost but not from other devices on your network.
Solution: Bind to all network interfaces:
claude-plan-viewer --host 0.0.0.0WARNING
This exposes the server to your local network. Only use on trusted networks.
JSON Export is Empty
Symptom: Running --json produces an empty array [].
Solution: This means no plan files were found. See No Plans Found above.
Project Filter Not Showing
Symptom: The project dropdown filter doesn't appear in the header.
Explanation: Project detection requires Claude Code's project metadata in ~/.claude/projects/. If this directory is missing or empty, projects cannot be detected.
Solution: This is expected behavior if you haven't used Claude Code with project-based sessions. The filter will appear once project metadata exists.
Plan Content Not Loading
Symptom: Clicking a plan shows an error or empty content.
Solutions:
Check if the file still exists — the plan may have been deleted while the viewer was open.
Refresh the plan list — click the refresh button in the header or restart the server.
Still Having Issues?
If you're experiencing a problem not covered here:
- Check the GitHub Issues for similar reports
- Open a new issue with:
- Your operating system and version
- How you installed the viewer (npx, binary, etc.)
- The exact error message or unexpected behavior
- Steps to reproduce the issue