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portbeagleboneblacknode-red

Node-red not starting

I'm trying to start the 'node-red' on BeagleboneBlack, but the application only returns this error:

24 May 20:15:53 - [info] Node-RED version: v0.16.2
24 May 20:15:53 - [info] Node.js  version: v4.8.0
24 May 20:15:53 - [info] Linux 4.4.54-ti-r93 arm LE
24 May 20:15:56 - [info] Loading palette nodes
24 May 20:16:14 - [warn] ---------------------------------------------------          
---
24 May 20:16:14 - [warn] [rpi-gpio] Info : Ignoring Raspberry Pi specific  
node
24 May 20:16:14 - [warn] [upm-grove-button] Error: Module version mismatch. 
Expected 46, got 14.
24 May 20:16:14 - [warn] [upm-grove-buzzer] Error: Module version mismatch. 
Expected 46, got 14.
24 May 20:16:14 - [warn] [upm-grove-led] Error: Module version mismatch. 
Expected 46, got 14.
24 May 20:16:14 - [warn] [upm-grove-light] Error: Module version mismatch. 
Expected 46, got 14.
24 May 20:16:14 - [warn] [upm-grove-relay] Error: Module version mismatch. 
Expected 46, got 14.
24 May 20:16:14 - [warn] [upm-grove-rgb-lcd] Error: Module version mismatch. 
Expected 46, got 14.
24 May 20:16:14 - [warn] [upm-grove-rotary] Error: Module version mismatch. 
Expected 46, got 14.
24 May 20:16:14 - [warn] [upm-grove-sound] Error: Module version mismatch. 
Expected 46, got 14.
24 May 20:16:14 - [warn] [upm-grove-temperature] Error: Module version 
mismatch. Expected 46, got 14.
24 May 20:16:14 - [warn] [upm-grove-adxl345] Error: Module version mismatch. 
Expected 46, got 14.
24 May 20:16:14 - [warn] [upm-grove-servo] Error: Module version mismatch. 
Expected 46, got 14.
24 May 20:16:14 - [warn] ---------------------------------------------------
---
24 May 20:16:14 - [info] Settings file  : /root/.node-red/settings.js
24 May 20:16:14 - [info] User directory : /root/.node-red
24 May 20:16:14 - [info] Flows file     : /root/.node-
red/flows_beaglebone.json
24 May 20:16:14 - [info] Creating new flow file
24 May 20:16:14 - [info] Starting flows
24 May 20:16:15 - [info] Started flows
24 May 20:16:15 - [warn] Communication server error: Error: listen 
EADDRINUSE 0.0.0.0:1880
24 May 20:16:15 - [error] Unable to listen on http://127.0.0.1:1880/
24 May 20:16:15 - [error] Error: port in use

I already tried to reinstall the packages, but the error persists. Please, help. Thanks

Solution

  • The Error: port in use error indicates you already have a process using port 1880.

    It is likely you already have Node-RED running on your BeagleBoneBlack. You can check this by running:

    ps -ef | grep node-red

    or

    ps -ef | grep red.js

    depending on how it is running. The output will show if there is already a node-red process running.

    How you stop it will depend on how it has been run. Check the documentation to see how it has been setup to run automatically.