# General

**URL:** https://discourse.nodered.org/c/general/7.md?page=887

[Latest](https://discourse.nodered.org/latest.md) · [Categories](https://discourse.nodered.org/categories.md) · [Tags](https://discourse.nodered.org/tags.md)

**Page:** 888

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## [Node Red OPCUA error when installing](https://discourse.nodered.org/t/node-red-opcua-error-when-installing/10952)

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**Author:** [@vysakhraj](https://discourse.nodered.org/u/vysakhraj)\
**Replies:** 1\
**Last updated:** [9 May 2019 13:34 UTC](https://discourse.nodered.org/t/node-red-opcua-error-when-installing/10952 "2019-05-09T13:34:39Z")

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Hi All, I am facing an issue when I try to install OPCUA node in Node Red... Below is the message I am getting when I try to install it. Can someone please tell me why this is happening and how can I solve it ? root@io…

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## [Node-red-contrib-timeout not updating in flows site](https://discourse.nodered.org/t/node-red-contrib-timeout-not-updating-in-flows-site/10940)

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**Author:** [@scargill](https://discourse.nodered.org/u/scargill)\
**Replies:** 4\
**Last updated:** [9 May 2019 11:39 UTC](https://discourse.nodered.org/t/node-red-contrib-timeout-not-updating-in-flows-site/10940 "2019-05-09T11:39:54Z")

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Can anyone help? I've updated node-red-contrib-timeout 3 days ago to version 1.1.3 and it appeared immediately on npm as usual. It has NOT however appeared in flows.nodered.org Pete

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## [TypeError First argument should be a valid curve name on HTTP node](https://discourse.nodered.org/t/typeerror-first-argument-should-be-a-valid-curve-name-on-http-node/10937)

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**Author:** [@smit.riaan](https://discourse.nodered.org/u/smit.riaan)\
**Replies:** 6\
**Last updated:** [9 May 2019 07:44 UTC](https://discourse.nodered.org/t/typeerror-first-argument-should-be-a-valid-curve-name-on-http-node/10937 "2019-05-09T07:44:51Z")

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Hi, I've run into a problem which I hope someone can help me with. I'm suddenly getting an error on a HTTP node that is POSTing to another server. The flow has been perfectly for almost a year and now suddenly I'm getti…

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## [TCP output problem sending byte over 127](https://discourse.nodered.org/t/tcp-output-problem-sending-byte-over-127/10922)

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**Author:** [@naamah75](https://discourse.nodered.org/u/naamah75)\
**Replies:** 2\
**Last updated:** [9 May 2019 06:27 UTC](https://discourse.nodered.org/t/tcp-output-problem-sending-byte-over-127/10922 "2019-05-09T06:27:09Z")

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I'm facing a very strange problem! :roll\_eyes: I'm tring to send a string (using the TCP output node) created from an a byte array. The problem is the following: if I send a byte with a value over 127 I receive an addi…

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## [Upgrade on Raspberry Pi hang or loop](https://discourse.nodered.org/t/upgrade-on-raspberry-pi-hang-or-loop/10916)

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**Author:** [@webtour](https://discourse.nodered.org/u/webtour)\
**Replies:** 8\
**Last updated:** [8 May 2019 16:38 UTC](https://discourse.nodered.org/t/upgrade-on-raspberry-pi-hang-or-loop/10916 "2019-05-08T16:38:18Z")

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Hi, I have a raspberry Pi 3 with the raspbian image from last year installed. When I want to upgarde the node-red software with this command: bash \<(curl -sL https://raw.githubusercontent.com/node-red/raspbian-deb-pac…

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## [Lookup JSON response in another JSON response](https://discourse.nodered.org/t/lookup-json-response-in-another-json-response/9250)

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**Author:** [@g7kse](https://discourse.nodered.org/u/g7kse)\
**Replies:** 17\
**Last updated:** [8 May 2019 14:35 UTC](https://discourse.nodered.org/t/lookup-json-response-in-another-json-response/9250 "2019-05-08T14:35:57Z")

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I'm extremely new to all of this and have a small issue to do with JSON I am trying to build up a small dashboard for a satellite project. Data is held in a couple of JSON URL's. The first API is one called Observations…

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## [ECONNRESET Error](https://discourse.nodered.org/t/econnreset-error/10919)

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**Author:** [@tcontrada](https://discourse.nodered.org/u/tcontrada)\
**Replies:** 1\
**Last updated:** [8 May 2019 13:52 UTC](https://discourse.nodered.org/t/econnreset-error/10919 "2019-05-08T13:52:42Z")

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I have my Node Red app running, but after a couple of days I get the following error message and the Node Red server stops: Error: read ECONNRESET at TCP.onStreamRead (internal/stream\_base\_commons.js:111:27)\* My NR v…

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## [Connection failed to the broker](https://discourse.nodered.org/t/connection-failed-to-the-broker/10913)

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**Author:** [@manal](https://discourse.nodered.org/u/manal)\
**Replies:** 2\
**Last updated:** [8 May 2019 09:12 UTC](https://discourse.nodered.org/t/connection-failed-to-the-broker/10913 "2019-05-08T09:12:23Z")

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Hi, Node-red suddenly stops connection with my broker in another device. the broker is active and running, and I ping the devices in both sides, they are connected. the only message in node-red "connection failed to b…

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## [Cannot start node-red](https://discourse.nodered.org/t/cannot-start-node-red/10911)

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**Author:** [@hathemi](https://discourse.nodered.org/u/hathemi)\
**Replies:** 5\
**Last updated:** [8 May 2019 08:27 UTC](https://discourse.nodered.org/t/cannot-start-node-red/10911 "2019-05-08T08:27:20Z")

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how can i fixe it ???

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## [MQTT log file in Window 10](https://discourse.nodered.org/t/mqtt-log-file-in-window-10/10907)

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**Author:** [@tramanah](https://discourse.nodered.org/u/tramanah)\
**Replies:** 3\
**Last updated:** [8 May 2019 06:43 UTC](https://discourse.nodered.org/t/mqtt-log-file-in-window-10/10907 "2019-05-08T06:43:27Z")

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Hi good day, Currently i am trying to view log file for MQTT transaction between subscriber and publisher in Window 10. I am using MOSCA MQTT Broker. May i know the file location.

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## [Start node red on boot with Cellular](https://discourse.nodered.org/t/start-node-red-on-boot-with-cellular/3395)

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**Author:** [@dreydean1](https://discourse.nodered.org/u/dreydean1)\
**Replies:** 4\
**Last updated:** [8 May 2019 06:30 UTC](https://discourse.nodered.org/t/start-node-red-on-boot-with-cellular/3395 "2019-05-08T06:30:53Z")

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I am creating a product which uses the Hologram Nova USB cellular modem plugged into a beaglebone black to send mqtt messages. I am having trouble getting node red to fire up on boot. I have created the recommended servi…

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## [Multiple input function](https://discourse.nodered.org/t/multiple-input-function/10901)

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**Author:** [@jjrivasescola](https://discourse.nodered.org/u/jjrivasescola)\
**Replies:** 2\
**Last updated:** [7 May 2019 22:03 UTC](https://discourse.nodered.org/t/multiple-input-function/10901 "2019-05-07T22:03:06Z")

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Hello, Would you like to help me on my project? The input data (stored on a array) always have the same order: date1, time1, model1, date2, time2, model2, ... , dateN, timeN, modelN. I would like to compare with a fun…

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## [How to trigger a flow from the command line](https://discourse.nodered.org/t/how-to-trigger-a-flow-from-the-command-line/10837)

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**Author:** [@hepcat72](https://discourse.nodered.org/u/hepcat72)\
**Replies:** 15\
**Last updated:** [7 May 2019 18:48 UTC](https://discourse.nodered.org/t/how-to-trigger-a-flow-from-the-command-line/10837 "2019-05-07T18:48:36Z")

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I just finished setting up Kodi on my RPi, so now I have 3 installed OSs (Kodi, Retro Pie, and Raspbian). I've also got homebridge and node-red running and after setting up Kodi, I had an idea. It would be really cool …

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## [Change settings.js](https://discourse.nodered.org/t/change-settings-js/10884)

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**Author:** [@Holger-Will](https://discourse.nodered.org/u/Holger-Will)\
**Replies:** 2\
**Last updated:** [7 May 2019 15:05 UTC](https://discourse.nodered.org/t/change-settings-js/10884 "2019-05-07T15:05:50Z")

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my node needs the nodes context storage to be persistent, for that, I can set contextStorage to localfilesystem in settings.js. can I change that setting from my node? how? in the docs it is mentioned that you can us…

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## [How to insert a quote in a msg.payload to write in a file](https://discourse.nodered.org/t/how-to-insert-a-quote-in-a-msg-payload-to-write-in-a-file/10879)

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**Author:** [@mike67](https://discourse.nodered.org/u/mike67)\
**Replies:** 3\
**Last updated:** [7 May 2019 12:28 UTC](https://discourse.nodered.org/t/how-to-insert-a-quote-in-a-msg-payload-to-write-in-a-file/10879 "2019-05-07T12:28:20Z")

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Hello I want to write this characters in a file "description": "Default Welcome Intent", The problem is that I can not insert correctly the " in the msg.payload that I want to write to my file. what is the syntax to …

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## [Embedded Node-RED's ability to override major functionality](https://discourse.nodered.org/t/embedded-node-reds-ability-to-override-major-functionality/10534)

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**Author:** [@arbmf](https://discourse.nodered.org/u/arbmf)\
**Replies:** 6\
**Last updated:** [7 May 2019 11:37 UTC](https://discourse.nodered.org/t/embedded-node-reds-ability-to-override-major-functionality/10534 "2019-05-07T11:37:55Z")

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Hi, My team(@shrayank and @m0nirul) is currently working on integrating Node-RED in an already built IOT platform and had a couple of questions: Our platform works on multiple instances and we would like to implement …

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## [\[bug?\]Tabs list only showing 1st 25 tabs](https://discourse.nodered.org/t/bug-tabs-list-only-showing-1st-25-tabs/10876)

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**Author:** [@cymplecy](https://discourse.nodered.org/u/cymplecy)\
**Replies:** 1\
**Last updated:** [7 May 2019 07:49 UTC](https://discourse.nodered.org/t/bug-tabs-list-only-showing-1st-25-tabs/10876 "2019-05-07T07:49:44Z")

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Win10 Chrome 0.20.5 I've actually got about 60 But maybe the issue is that I have too many tabs..........

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## [Return values from terminal](https://discourse.nodered.org/t/return-values-from-terminal/10864)

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**Author:** [@mike67](https://discourse.nodered.org/u/mike67)\
**Replies:** 3\
**Last updated:** [7 May 2019 05:44 UTC](https://discourse.nodered.org/t/return-values-from-terminal/10864 "2019-05-07T05:44:15Z")

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Hello When I use the terminal to create a such command :slight\_smile: ngrok http https://127.0.0.1:8081, wich is a command to create a tunnelto expose a port of my machine to the web, with ngrok, then the terminal is c…

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## [Google Cloud node in node-RED](https://discourse.nodered.org/t/google-cloud-node-in-node-red/6962)

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**Author:** [@Madhumati](https://discourse.nodered.org/u/Madhumati)\
**Replies:** 5\
**Last updated:** [6 May 2019 23:05 UTC](https://discourse.nodered.org/t/google-cloud-node-in-node-red/6962 "2019-05-06T23:05:56Z")

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Hello, I am trying to install " Google Cloud node " on my edge gateway device. But failed to install, please see the error screenshot & error in log --right side. ​​ Could you please suggest why such error & what sho…

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## [Shutting down Pi from NR](https://discourse.nodered.org/t/shutting-down-pi-from-nr/10616)

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**Author:** [@vazquezjm](https://discourse.nodered.org/u/vazquezjm)\
**Replies:** 6\
**Last updated:** [6 May 2019 22:34 UTC](https://discourse.nodered.org/t/shutting-down-pi-from-nr/10616 "2019-05-06T22:34:59Z")

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Hi. I was wondering if there's a way to issue system commands from NR (Raspbian). Basically, I need to shut it down based on certain condition (reading an MQTT message, GPIO state, etc.) TIA

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## [Hidden flows, nodes, locked subflows](https://discourse.nodered.org/t/hidden-flows-nodes-locked-subflows/10848)

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**Author:** [@Mvogel](https://discourse.nodered.org/u/Mvogel)\
**Replies:** 3\
**Last updated:** [6 May 2019 22:06 UTC](https://discourse.nodered.org/t/hidden-flows-nodes-locked-subflows/10848 "2019-05-06T22:06:12Z")

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I am new on the forum but working with Node-red for about 4 years. I am very happy to see lots of improvements during this time. I would like to ask for suggestions regarding some features I still miss and also see whet…

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## [A few MQTT topics to SQLite](https://discourse.nodered.org/t/a-few-mqtt-topics-to-sqlite/3340)

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**Author:** [@AD3D](https://discourse.nodered.org/u/AD3D)\
**Replies:** 20\
**Last updated:** [6 May 2019 18:13 UTC](https://discourse.nodered.org/t/a-few-mqtt-topics-to-sqlite/3340 "2019-05-06T18:13:57Z")

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I am very new to this, not a very quick learner but learn most of examples and tips. But after a few days of struggeling with this I need some pointers about different MQTT topics to put in a SQLite db. I have a SQLite…

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## [Node-Red Dashboard UI security](https://discourse.nodered.org/t/node-red-dashboard-ui-security/10853)

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**Author:** [@raghavendraawad](https://discourse.nodered.org/u/raghavendraawad)\
**Replies:** 1\
**Last updated:** [6 May 2019 16:52 UTC](https://discourse.nodered.org/t/node-red-dashboard-ui-security/10853 "2019-05-06T16:52:02Z")

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Hello, I have successfully secured the Node-Red. Now I am not able to secure the Node-red Dashboard(UI) interface. Can you suggest some info or process? Thanking you.

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## [Canvas password vs Dashborad](https://discourse.nodered.org/t/canvas-password-vs-dashborad/10849)

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**Author:** [@JoseGodinho](https://discourse.nodered.org/u/JoseGodinho)\
**Replies:** 2\
**Last updated:** [6 May 2019 14:51 UTC](https://discourse.nodered.org/t/canvas-password-vs-dashborad/10849 "2019-05-06T14:51:19Z")

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Hello All I Have been browsing the documentations and the forum, If this was answered please accept my apologies.. May I create a user level that he might see and use the dashboard, but cannot see or change the canvas…

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## [node-RED can not be opened anymore](https://discourse.nodered.org/t/node-red-can-not-be-opened-anymore/6587)

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**Author:** [@Georg25](https://discourse.nodered.org/u/Georg25)\
**Replies:** 39\
**Last updated:** [6 May 2019 13:36 UTC](https://discourse.nodered.org/t/node-red-can-not-be-opened-anymore/6587 "2019-05-06T13:36:48Z")

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I ran Node-RED on a Pi, it ran fine until last night. After a deploy I lost the connection to Node-RED. And it can not be called up until now. I can start node-RED but I can not reach it via the browser anymore! What ca…

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## [Custom node: dynamic editor](https://discourse.nodered.org/t/custom-node-dynamic-editor/10775)

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**Author:** [@Louise](https://discourse.nodered.org/u/Louise)\
**Replies:** 6\
**Last updated:** [6 May 2019 12:41 UTC](https://discourse.nodered.org/t/custom-node-dynamic-editor/10775 "2019-05-06T12:41:56Z")

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Hello, I need some help with my custom nodes again. In my editor I have a dropdown menu with the options "motion" and "machine". When the option "motion" is selected the editor should ask for values of motionType, motio…

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## [Delete nodes in Windows](https://discourse.nodered.org/t/delete-nodes-in-windows/10844)

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**Author:** [@JokinSegu](https://discourse.nodered.org/u/JokinSegu)\
**Replies:** 6\
**Last updated:** [6 May 2019 12:05 UTC](https://discourse.nodered.org/t/delete-nodes-in-windows/10844 "2019-05-06T12:05:47Z")

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Which is the command to delete nodes in Windows Node-red?

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## [Harmony plugin error that xmpp is depreciated (I'm using Docker)](https://discourse.nodered.org/t/harmony-plugin-error-that-xmpp-is-depreciated-im-using-docker/10847)

<div class="topic-metadata">

**Author:** [@simonk83](https://discourse.nodered.org/u/simonk83)\
**Replies:** 2\
**Last updated:** [6 May 2019 11:54 UTC](https://discourse.nodered.org/t/harmony-plugin-error-that-xmpp-is-depreciated-im-using-docker/10847 "2019-05-06T11:54:06Z")

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Hi guys, I'm running the official Node-Red docker image and am trying to install node-red-contrib-harmony through the palette manager. Just curious if anyone else is able to install this? I either get: deprecated nod…

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## [SERIAL node stopbits problem](https://discourse.nodered.org/t/serial-node-stopbits-problem/10843)

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**Author:** [@iungo](https://discourse.nodered.org/u/iungo)\
**Replies:** 5\
**Last updated:** [6 May 2019 09:36 UTC](https://discourse.nodered.org/t/serial-node-stopbits-problem/10843 "2019-05-06T09:36:37Z")

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I found a problem with SERIAL node (Raspberry PI Zero W hardware /dev/ttyS0). It doesn't react to stopbits value. I've made 2 oscillograms with 1 stopbit (top) and 2 stopbits(bottom) and it looks absolutely the same. …

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## [Clarification on NR install and update in Rpi](https://discourse.nodered.org/t/clarification-on-nr-install-and-update-in-rpi/10840)

<div class="topic-metadata">

**Author:** [@kenkoknz](https://discourse.nodered.org/u/kenkoknz)\
**Replies:** 2\
**Last updated:** [6 May 2019 06:03 UTC](https://discourse.nodered.org/t/clarification-on-nr-install-and-update-in-rpi/10840 "2019-05-06T06:03:00Z")

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Hi, Just need some clarification with installation and upgrade of NR in ResPi: According to the docs " If you have a version of Raspbian, or other Debian based install, such as Ubuntu , or Diet-Pi , that doesn’t have N…

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