# Cannot make Flogger node work

**URL:** <https://discourse.nodered.org/t/cannot-make-flogger-node-work/99208>\
**Category:** General\
**Tags:** log\
**Created:** [29 September 2025 06:06 UTC](https://discourse.nodered.org/t/cannot-make-flogger-node-work/99208 "2025-09-29T06:06:26Z")\
**Posts on this page:** 9\
**Page:** 1

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**Author:** ![shubhamnodered](https://avatars.discourse-cdn.com/v4/letter/s/e8c25b/32.png) [@shubhamnodered](https://discourse.nodered.org/u/shubhamnodered)\
**Post date:** [29 September 2025 06:06 UTC](https://discourse.nodered.org/t/cannot-make-flogger-node-work/99208/1 "2025-09-29T06:06:26Z")

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Hi everyone,

My aim is to implement auto-logger with auto rotation feature in my flow. And [flogger node](https://flows.nodered.org/node/node-red-contrib-flogger) seems can serve my purpose. However, I cannot seem to make **flogger node** work. I tested on both windows and Linux (PI). But I'm getting same error on both:" **Can't write file: No such file or directory**"

Someone mentioned in the [GIT forum](https://github.com/x821938/node-red-contrib-flogger/pull/8) that it does not runs on windows OS. But in my case, i cannot able to make it work on PI as well.

The flow I'm using is the one came with flogger node (example)  
Also, I'm running node red version 4.1 currently in both windows and Linux and tested flogger flow example on both OS.

_ **Can some one check if its working.?** _

I'm attaching flogger configuration and error image for reference:

 ![Screenshot 2025-09-29 105457](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/8/6/86508997478b5b1ded777bd01f02e35b708db6e8.png)  
 ![Screenshot 2025-09-29 105533](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/1/d/1d0fc6dede5b9370a10f67bf7407fadda6406276.png)  
 ![Screenshot 2025-09-29 105547](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/7/e/7ee909bc6c7d8ff5f9f9eb78002af77688173746.png)

**Regards,**  
**Shubham**

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**Author:** ![Steve-Mcl](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/steve-mcl/32/4826_2.png) [@Steve-Mcl](https://discourse.nodered.org/u/Steve-Mcl)\
**Post date:** [29 September 2025 06:30 UTC](https://discourse.nodered.org/t/cannot-make-flogger-node-work/99208/2 "2025-09-29T06:30:31Z")

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> [@shubhamnodered](#):
>
> it does not runs on windows OS.

It does (or at least did) work on Windows

Obvious questions:

1. Does that directory exist?
2. Try changing to regular slashes (C:/Users/etc)
3. Does the account running Node-RED have access to that directory?

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**Author:** ![shubhamnodered](https://avatars.discourse-cdn.com/v4/letter/s/e8c25b/32.png) [@shubhamnodered](https://discourse.nodered.org/u/shubhamnodered)\
**Post date:** [29 September 2025 06:52 UTC](https://discourse.nodered.org/t/cannot-make-flogger-node-work/99208/3 "2025-09-29T06:52:56Z")

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@Steve-Mcl Regular slash is the solution.

For windows: (forward slash is required) [eg] =\> C:/Users/IIoT-PC/Downloads  
For linux: (forward slash followed by path is required [eg] =\> /home/dell

However, I'm getting _ **RED\_TRIANGLE** _ at the top of flogger node even though node is working fine. Hovering over the node shows " **Invalid properties expression: zero length**".

I read the node-info and there is no such property that is required to be provided as input to the flogger node.

 ![image](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/f/2/f2f59bf489f77a6629f83b69cafa1c12782ac632.png)

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<div class="post-metadata">

**Author:** ![Steve-Mcl](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/steve-mcl/32/4826_2.png) [@Steve-Mcl](https://discourse.nodered.org/u/Steve-Mcl)\
**Post date:** [29 September 2025 07:00 UTC](https://discourse.nodered.org/t/cannot-make-flogger-node-work/99208/4 "2025-09-29T07:00:36Z")

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1. What version of Node-RED are you using
2. What version of NodeJS are you using?
3. Show us what the info panel has for the node and its config node...  
 ![chrome_yCKOmuObhh](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/c/b/cb168f259cf05fb4518c8535a78ab2799c8db0c0.gif)

Also, try adding a new flogger and a new flogger config - do you get the issue triangle on the new ones?

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<div class="post-metadata">

**Author:** ![shubhamnodered](https://avatars.discourse-cdn.com/v4/letter/s/e8c25b/32.png) [@shubhamnodered](https://discourse.nodered.org/u/shubhamnodered)\
**Post date:** [29 September 2025 07:24 UTC](https://discourse.nodered.org/t/cannot-make-flogger-node-work/99208/5 "2025-09-29T07:24:40Z")

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Like you said, just copy-pasted the same node and connected the same input/output the new one does the JOB. But out of curiosity. What happened earlier?

_Requested information:_  
_1. Node-red version =\> v4.1.0_  
_2. Node.js version =\> v22.14.0_  
_3. Attached GIF_  
 _![bandicam 2025-09-29 12-42-48-015.mp4](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/d/b/db823dc9ceada460c0bf9830b72fc91946c54a7e.gif)_

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<div class="post-metadata">

**Author:** ![Steve-Mcl](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/steve-mcl/32/4826_2.png) [@Steve-Mcl](https://discourse.nodered.org/u/Steve-Mcl)\
**Post date:** [29 September 2025 07:29 UTC](https://discourse.nodered.org/t/cannot-make-flogger-node-work/99208/6 "2025-09-29T07:29:53Z")

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Either you imported a "badly configured node" from a flow somewhere online or at some point, you have altered the Log option and left an invalid value

![chrome_Pqtq4BICCa](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/1/b/1b6fb3385099245ad4104fa2a182f4cf946c7e2d.gif)

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<div class="post-metadata">

**Author:** ![shubhamnodered](https://avatars.discourse-cdn.com/v4/letter/s/e8c25b/32.png) [@shubhamnodered](https://discourse.nodered.org/u/shubhamnodered)\
**Post date:** [29 September 2025 07:39 UTC](https://discourse.nodered.org/t/cannot-make-flogger-node-work/99208/7 "2025-09-29T07:39:31Z")

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Default flogger node imported example's "Log entire message" node is the only one shows that RED-triangle in my case. Just copying and pasting it and reattaching the I/O does the JOB.

Thanks for the help

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<div class="post-metadata">

**Author:** ![shubhamnodered](https://avatars.discourse-cdn.com/v4/letter/s/e8c25b/32.png) [@shubhamnodered](https://discourse.nodered.org/u/shubhamnodered)\
**Post date:** [29 September 2025 07:50 UTC](https://discourse.nodered.org/t/cannot-make-flogger-node-work/99208/8 "2025-09-29T07:50:49Z")

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Default flogger node imported example's "Log entire message" node is the only one shows that RED-triangle in my case. Just copying and pasting it and reattaching the I/O does the JOB.

But @Steve-Mcl, I would like to point out something.It is better to create new node as mentioned by you [with new configuration [delete the older one]]. otherwise, making any changes to the copied node(i was doing earlier), creates the TRIANGLE.

Thanks for the help

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**Author:** ![system](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/1X/d073cd938eafa2e558d7c2cd59003b3ef4963033.png) [@system](https://discourse.nodered.org/u/system)\
**Post date:** [13 October 2025 07:51 UTC](https://discourse.nodered.org/t/cannot-make-flogger-node-work/99208/9 "2025-10-13T07:51:05Z")

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