Node red crashing

General
1

Greetings, I started using node-red a while ago as a SCADA main system and I am really impressed with it's capabilities. Although, the software crashes every time I start it...

Any thoughts?

24 Sep 12:52:06 - [info] Server now running at http://127.0.0.1:1880/
24 Sep 12:52:06 - [info] Installing module: 1, version: latest
24 Sep 12:52:12 - [error] Installation of module 1 failed:
24 Sep 12:52:12 - [error] ------------------------------------------
24 Sep 12:52:12 - [error] npm WARN config production Use `--omit=dev` instead.
npm WARN deprecated node-uuid@1.4.8: Use uuid module instead
npm WARN cleanup Failed to remove some directories [
npm WARN cleanup   [
npm WARN cleanup     'C:\\Users\\xxxx-\\.node-red\\node_modules\\zmq',
npm WARN cleanup     [Error: EPERM: operation not permitted, rmdir 'C:\Users\xxx-\.node-red\node_modules\zmq\windows\lib\x64'] {
npm WARN cleanup       errno: -4048,
npm WARN cleanup       code: 'EPERM',
npm WARN cleanup       syscall: 'rmdir',
npm WARN cleanup       path: 'C:\\Users\\xxx-\\.node-red\\node_modules\\zmq\\windows\\lib\\x64'
npm WARN cleanup     }
npm WARN cleanup   ]
npm WARN cleanup ]
npm ERR! code 1
npm ERR! path C:\Users\xx-\.node-red\node_modules\mdns2
npm ERR! command failed
npm ERR! command C:\WINDOWS\system32\cmd.exe /d /s /c node-gyp rebuild
npm ERR! gyp info it worked if it ends with ok
npm ERR! gyp info using node-gyp@9.3.1
npm ERR! gyp info using node@18.17.0 | win32 | x64
npm ERR! gyp ERR! find Python
npm ERR! gyp ERR! find Python Python is not set from command line or npm configuration
npm ERR! gyp ERR! find Python Python is not set from environment variable PYTHON
npm ERR! gyp ERR! find Python checking if "python3" can be used
npm ERR! gyp ERR! find Python - "python3" is not in PATH or produced an error
npm ERR! gyp ERR! find Python checking if "python" can be used
npm ERR! gyp ERR! find Python - "python" is not in PATH or produced an error
npm ERR! gyp ERR! find Python checking if Python is C:\Users\xxx-\AppData\Local\Programs\Python\Python39\python.exe
npm ERR! gyp ERR! find Python - "C:\Users\xxx-\AppData\Local\Programs\Python\Python39\python.exe" could not be run
npm ERR! gyp ERR! find Python checking if Python is C:\Program Files\Python39\python.exe
npm ERR! gyp ERR! find Python - "C:\Program Files\Python39\python.exe" could not be run
npm ERR! gyp ERR! find Python checking if Python is C:\Users\xxx-\AppData\Local\Programs\Python\Python39-32\python.exe
npm ERR! gyp ERR! find Python - "C:\Users\xxx-\AppData\Local\Programs\Python\Python39-32\python.exe" could not be run
npm ERR! gyp ERR! find Python checking if Python is C:\Program Files\Python39-32\python.exe
npm ERR! gyp ERR! find Python - "C:\Program Files\Python39-32\python.exe" could not be run
npm ERR! gyp ERR! find Python checking if Python is C:\Program Files (x86)\Python39-32\python.exe
npm ERR! gyp ERR! find Python - "C:\Program Files (x86)\Python39-32\python.exe" could not be run
npm ERR! gyp ERR! find Python checking if Python is C:\Users\paul-\AppData\Local\Programs\Python\Python38\python.exe
npm ERR! gyp ERR! find Python - "C:\Users\paul-\AppData\Local\Programs\Python\Python38\python.exe" could not be run
npm ERR! gyp ERR! find Python checking if Python is C:\Program Files\Python38\python.exe
npm ERR! gyp ERR! find Python - "C:\Program Files\Python38\python.exe" could not be run
npm ERR! gyp ERR! find Python checking if Python is C:\Users\paul-\AppData\Local\Programs\Python\Python38-32\python.exe
npm ERR! gyp ERR! find Python - "C:\Users\paul-\AppData\Local\Programs\Python\Python38-32\python.exe" could not be run
npm ERR! gyp ERR! find Python checking if Python is C:\Program Files\Python38-32\python.exe
npm ERR! gyp ERR! find Python - "C:\Program Files\Python38-32\python.exe" could not be run
npm ERR! gyp ERR! find Python checking if Python is C:\Program Files (x86)\Python38-32\python.exe
npm ERR! gyp ERR! find Python - "C:\Program Files (x86)\Python38-32\python.exe" could not be run
npm ERR! gyp ERR! find Python checking if Python is C:\Users\x-xx\AppData\Local\Programs\Python\Python37\python.exe
npm ERR! gyp ERR! find Python - "C:\Users\x-xx\AppData\Local\Programs\Python\Python37\python.exe" could not be run
npm ERR! gyp ERR! find Python checking if Python is C:\Program Files\Python37\python.exe
npm ERR! gyp ERR! find Python - "C:\Program Files\Python37\python.exe" could not be run
npm ERR! gyp ERR! find Python checking if Python is C:\Users\x-xx\AppData\Local\Programs\Python\Python37-32\python.exe
npm ERR! gyp ERR! find Python - "C:\Users\xxx-\AppData\Local\Programs\Python\Python37-32\python.exe" could not be run
npm ERR! gyp ERR! find Python checking if Python is C:\Program Files\Python37-32\python.exe
npm ERR! gyp ERR! find Python - "C:\Program Files\Python37-32\python.exe" could not be run
npm ERR! gyp ERR! find Python checking if Python is C:\Program Files (x86)\Python37-32\python.exe
npm ERR! gyp ERR! find Python - "C:\Program Files (x86)\Python37-32\python.exe" could not be run
npm ERR! gyp ERR! find Python checking if Python is C:\Users\x-xx\AppData\Local\Programs\Python\Python36\python.exe
npm ERR! gyp ERR! find Python - "C:\Users\xxx-\AppData\Local\Programs\Python\Python36\python.exe" could not be run
npm ERR! gyp ERR! find Python checking if Python is C:\Program Files\Python36\python.exe
npm ERR! gyp ERR! find Python - "C:\Program Files\Python36\python.exe" could not be run
npm ERR! gyp ERR! find Python checking if Python is C:\Users\x-xx\AppData\Local\Programs\Python\Python36-32\python.exe
npm ERR! gyp ERR! find Python - "C:\Users\xxx-\AppData\Local\Programs\Python\Python36-32\python.exe" could not be run
npm ERR! gyp ERR! find Python checking if Python is C:\Program Files\Python36-32\python.exe
npm ERR! gyp ERR! find Python - "C:\Program Files\Python36-32\python.exe" could not be run
npm ERR! gyp ERR! find Python checking if Python is C:\Program Files (x86)\Python36-32\python.exe
npm ERR! gyp ERR! find Python - "C:\Program Files (x86)\Python36-32\python.exe" could not be run
npm ERR! gyp ERR! find Python checking if the py launcher can be used to find Python 3
npm ERR! gyp ERR! find Python - "py.exe" is not in PATH or produced an error
npm ERR! gyp ERR! find Python
npm ERR! gyp ERR! find Python **********************************************************
npm ERR! gyp ERR! find Python You need to install the latest version of Python.
npm ERR! gyp ERR! find Python Node-gyp should be able to find and use Python. If not,
npm ERR! gyp ERR! find Python you can try one of the following options:
npm ERR! gyp ERR! find Python - Use the switch --python="C:\Path\To\python.exe"
npm ERR! gyp ERR! find Python   (accepted by both node-gyp and npm)
npm ERR! gyp ERR! find Python - Set the environment variable PYTHON
npm ERR! gyp ERR! find Python - Set the npm configuration variable python:
npm ERR! gyp ERR! find Python   npm config set python "C:\Path\To\python.exe"
npm ERR! gyp ERR! find Python For more information consult the documentation at:
npm ERR! gyp ERR! find Python https://github.com/nodejs/node-gyp#installation
npm ERR! gyp ERR! find Python **********************************************************
npm ERR! gyp ERR! find Python
npm ERR! gyp ERR! configure error
npm ERR! gyp ERR! stack Error: Could not find any Python installation to use
npm ERR! gyp ERR! stack     at PythonFinder.fail (C:\Program Files\nodejs\node_modules\npm\node_modules\node-gyp\lib\find-python.js:330:47)
npm ERR! gyp ERR! stack     at PythonFinder.runChecks (C:\Program Files\nodejs\node_modules\npm\node_modules\node-gyp\lib\find-python.js:159:21)
npm ERR! gyp ERR! stack     at PythonFinder.<anonymous> (C:\Program Files\nodejs\node_modules\npm\node_modules\node-gyp\lib\find-python.js:228:18)
npm ERR! gyp ERR! stack     at PythonFinder.execFileCallback (C:\Program Files\nodejs\node_modules\npm\node_modules\node-gyp\lib\find-python.js:294:16)
npm ERR! gyp ERR! stack     at exithandler (node:child_process:427:5)
npm ERR! gyp ERR! stack     at ChildProcess.errorhandler (node:child_process:439:5)
npm ERR! gyp ERR! stack     at ChildProcess.emit (node:events:514:28)
npm ERR! gyp ERR! stack     at ChildProcess._handle.onexit (node:internal/child_process:289:12)
npm ERR! gyp ERR! stack     at onErrorNT (node:internal/child_process:476:16)
npm ERR! gyp ERR! stack     at process.processTicksAndRejections (node:internal/process/task_queues:82:21)
npm ERR! gyp ERR! System Windows_NT 10.0.22621
npm ERR! gyp ERR! command "C:\\Program Files\\nodejs\\node.exe" "C:\\Program Files\\nodejs\\node_modules\\npm\\node_modules\\node-gyp\\bin\\node-gyp.js" "rebuild"
npm ERR! gyp ERR! cwd C:\Users\x-xx\.node-red\node_modules\mdns2
npm ERR! gyp ERR! node -v v18.17.0
npm ERR! gyp ERR! node-gyp -v v9.3.1
npm ERR! gyp ERR! not ok

npm ERR! A complete log of this run can be found in: C:\Users\xxx-\AppData\Local\npm-cache\_logs\2023-09-24T09_52_07_740Z-debug-0.log

24 Sep 12:52:12 - [error] ------------------------------------------
24 Sep 12:52:12 - [info] Failed to load external modules required by this flow:
24 Sep 12:52:12 - [info]  - 1 [unexpected_error]
2

Welcome to the forums @Paulos

Below is a clue in the log you posted?

Maybe try installing python.
Python3 is needed to build some nodes in Node RED

3

But the system was working for some weeks without any error!

4

You might have installed a node that requires building?
or something has changed on your system, that results in Python no longer being found?

5

A node module of mdns2 seems to require building - but it can't because python is not found.
mdns2 might be required by another node?

6

When you install NodeJS did you also install Build Tools?
Build Tools contains Python and all the compiler stuff needed for things that need compiling.

1 Like
7

And the windows built-tools are now offered as an option when you install Node.js. Best to accept that option. You might simply try reinstalling node.js v18 and accept the options which should sort out that issue.

8

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