# General

**URL:** https://discourse.nodered.org/c/general/7.md?page=413

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

**Page:** 414

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## [Node Red application keeps quitting](https://discourse.nodered.org/t/node-red-application-keeps-quitting/59112)

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**Author:** [@EuroNiceguy](https://discourse.nodered.org/u/EuroNiceguy)\
**Replies:** 9\
**Last updated:** [28 February 2022 13:19 UTC](https://discourse.nodered.org/t/node-red-application-keeps-quitting/59112 "2022-02-28T13:19:08Z")

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Hello Everyone, I have installed Node Red into our Oracle Linux (Red Hat based) instance and after a while, the browser just updates and comes up "Safari cannot connect to server" I have to go back into the instance an…

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## [Help me! I have problem "Flows stopped due to missing node types"](https://discourse.nodered.org/t/help-me-i-have-problem-flows-stopped-due-to-missing-node-types/59117)

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**Author:** [@Pakaphon](https://discourse.nodered.org/u/Pakaphon)\
**Replies:** 2\
**Last updated:** [28 February 2022 13:04 UTC](https://discourse.nodered.org/t/help-me-i-have-problem-flows-stopped-due-to-missing-node-types/59117 "2022-02-28T13:04:42Z")

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First of all, I'm not good at English.and only 20 years old, but there is a need to do a project that has never been done before. I have to use google traslate to help me. If something I write looks strange, I'm sorry. …

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## [Uibuilder and vue router](https://discourse.nodered.org/t/uibuilder-and-vue-router/19269)

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**Author:** [@vollnormal](https://discourse.nodered.org/u/vollnormal)\
**Replies:** 8\
**Last updated:** [28 February 2022 12:59 UTC](https://discourse.nodered.org/t/uibuilder-and-vue-router/19269 "2022-02-28T12:59:57Z")

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Hi. Uibuilder has been great so far and I am really get into the swing of it! Thank you very much for that! :+1: I have run into a problem that I am unable to use Vue Router properly. Perhaps it has something to do with…

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## [Getting started to Building a GPS tracking platform](https://discourse.nodered.org/t/getting-started-to-building-a-gps-tracking-platform/59098)

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**Author:** [@EuroNiceguy](https://discourse.nodered.org/u/EuroNiceguy)\
**Replies:** 17\
**Last updated:** [28 February 2022 12:19 UTC](https://discourse.nodered.org/t/getting-started-to-building-a-gps-tracking-platform/59098 "2022-02-28T12:19:52Z")

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Hello everyone, I have submitted posts in the past regarding GPS Tracking and I want to get more proactive to get something into action. I have already had a responsive HTML and App User interface built, which is ready…

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## [OPC UA certificate error](https://discourse.nodered.org/t/opc-ua-certificate-error/59111)

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**Author:** [@rizwan](https://discourse.nodered.org/u/rizwan)\
**Replies:** 0\
**Last updated:** [28 February 2022 11:23 UTC](https://discourse.nodered.org/t/opc-ua-certificate-error/59111 "2022-02-28T11:23:06Z")

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Hello guys, I am a beginner in node-red and trying to read data from OPCUA server via opc ua client node but I am getting an error of "invalid endpoint error: The connection may have been rejected by server". As I t…

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## [Modbus TCP runtime ip](https://discourse.nodered.org/t/modbus-tcp-runtime-ip/58876)

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**Author:** [@MauroS](https://discourse.nodered.org/u/MauroS)\
**Replies:** 2\
**Last updated:** [28 February 2022 10:21 UTC](https://discourse.nodered.org/t/modbus-tcp-runtime-ip/58876 "2022-02-28T10:21:23Z")

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Hey everybody, I'm using node-red-contrib-modbus and made successfully a modbus tcp connection, even read and write mode. I trying to find out a way to set dynamically, I mean in runtime as I do with a function node ri…

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## [Node Red / HA / WLED groups.yaml call service entity id](https://discourse.nodered.org/t/node-red-ha-wled-groups-yaml-call-service-entity-id/59092)

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**Author:** [@xpantz](https://discourse.nodered.org/u/xpantz)\
**Replies:** 3\
**Last updated:** [28 February 2022 09:15 UTC](https://discourse.nodered.org/t/node-red-ha-wled-groups-yaml-call-service-entity-id/59092 "2022-02-28T09:15:26Z")

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Hi All, I've been using Node Red in HA to control a bunch of WLED installs. It's been working a treat for months. I use HA groups.yaml to specify a long list of entities to use in a "call service" node. After a recen…

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## [Problem visualizing CSV data in a Line chart. I can read the timestamp and temperature data but i don't see the graph](https://discourse.nodered.org/t/problem-visualizing-csv-data-in-a-line-chart-i-can-read-the-timestamp-and-temperature-data-but-i-dont-see-the-graph/59013)

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**Author:** [@venket1610](https://discourse.nodered.org/u/venket1610)\
**Replies:** 10\
**Last updated:** [28 February 2022 08:40 UTC](https://discourse.nodered.org/t/problem-visualizing-csv-data-in-a-line-chart-i-can-read-the-timestamp-and-temperature-data-but-i-dont-see-the-graph/59013 "2022-02-28T08:40:26Z")

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\[ { "id": "e4e30c42d69f0e9c", "type": "tab", "label": "File Browser", "disabled": false, "info": "", "env": \[\] }, { "id": "4fa73dd9.83cca4", "ty…

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## [Resolving error "A duplicate file name exists, or the file cannot be found."](https://discourse.nodered.org/t/resolving-error-a-duplicate-file-name-exists-or-the-file-cannot-be-found/59004)

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**Author:** [@PossumPro](https://discourse.nodered.org/u/PossumPro)\
**Replies:** 5\
**Last updated:** [28 February 2022 01:08 UTC](https://discourse.nodered.org/t/resolving-error-a-duplicate-file-name-exists-or-the-file-cannot-be-found/59004 "2022-02-28T01:08:03Z")

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Hello, I'm attempting to resolve an error with my Node-Red setup that I see when using the TagUI module. The error I'm seeing is after the execution of any TagUI module: "A duplicate file name exists, or the file canno…

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## [How to use Function to select byte array and display string](https://discourse.nodered.org/t/how-to-use-function-to-select-byte-array-and-display-string/59085)

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**Author:** [@rfrancis97](https://discourse.nodered.org/u/rfrancis97)\
**Replies:** 5\
**Last updated:** [28 February 2022 00:12 UTC](https://discourse.nodered.org/t/how-to-use-function-to-select-byte-array-and-display-string/59085 "2022-02-28T00:12:22Z")

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I'm new to this, and have been playing around, but to no avail. I have the following object being delivered from an mqtt broker. { "uplink\_message": { "session\_key\_id": "AX88sOZsNTkoN5rZ+Rzx/Q==", "…

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## [Google calendar configuration](https://discourse.nodered.org/t/google-calendar-configuration/59082)

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**Author:** [@kkuula](https://discourse.nodered.org/u/kkuula)\
**Replies:** 0\
**Last updated:** [27 February 2022 21:53 UTC](https://discourse.nodered.org/t/google-calendar-configuration/59082 "2022-02-27T21:53:21Z")

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Hello, My setup is following: Raspberry Pi 3b+ runnin node-red, and Android tablet as UI device. I have tried to configure Google -node to get calendar events shown, but I am having hard time with it. I already created…

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## [Init Global array and flush it](https://discourse.nodered.org/t/init-global-array-and-flush-it/59078)

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**Author:** [@thierry-rhone](https://discourse.nodered.org/u/thierry-rhone)\
**Replies:** 2\
**Last updated:** [27 February 2022 21:15 UTC](https://discourse.nodered.org/t/init-global-array-and-flush-it/59078 "2022-02-27T21:15:07Z")

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Hi, I'm searching how create a global empty array with name 'sources' afterward I will fill it to have a array such as this one sources 0 : "Name": "thierry" "Num": 3 1 : "Name": "search" "Num": 1 2 : "Name": …

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## [Keep state of sensor](https://discourse.nodered.org/t/keep-state-of-sensor/59074)

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**Author:** [@Chura](https://discourse.nodered.org/u/Chura)\
**Replies:** 1\
**Last updated:** [27 February 2022 18:48 UTC](https://discourse.nodered.org/t/keep-state-of-sensor/59074 "2022-02-27T18:48:45Z")

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Hi I have a contact sensor, that tell me if something stop the rollercoaster from shutting down. I want to add, that send the command on the right, only if other sensor is closed However, That other sensor report t…

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## [Object to string issue](https://discourse.nodered.org/t/object-to-string-issue/59064)

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**Author:** [@FeliceM](https://discourse.nodered.org/u/FeliceM)\
**Replies:** 10\
**Last updated:** [27 February 2022 16:48 UTC](https://discourse.nodered.org/t/object-to-string-issue/59064 "2022-02-27T16:48:43Z")

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I need to change an object to string but I am not getting out the desired output. My object is like this: I am using a function to stringify the object and strip out/replace the unwonted chars. For some reason I am n…

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## [Status node not seeming to work](https://discourse.nodered.org/t/status-node-not-seeming-to-work/59040)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 4\
**Last updated:** [27 February 2022 00:18 UTC](https://discourse.nodered.org/t/status-node-not-seeming-to-work/59040 "2022-02-27T00:18:08Z")

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I just posed - and redacted - a post on it. Yeah, I made a mistake. But fixing the mistake didn't fix the problem. Ok, to state what I think/know. the status node gets the status of all/some nodes and spits that out…

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## [Unexpected Switch behavior (datatype?)](https://discourse.nodered.org/t/unexpected-switch-behavior-datatype/59030)

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**Author:** [@hw-monkey](https://discourse.nodered.org/u/hw-monkey)\
**Replies:** 11\
**Last updated:** [26 February 2022 22:56 UTC](https://discourse.nodered.org/t/unexpected-switch-behavior-datatype/59030 "2022-02-26T22:56:52Z")

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I am a novice with Node Red. I have a Midea HVAC that cannot keep its tempterature within a decent range. Since I have been troubleshooting this Flow for sometime, I have taken parts of the msg payload and inputs and pu…

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## [API Error when sending notifcation to phone- call service](https://discourse.nodered.org/t/api-error-when-sending-notifcation-to-phone-call-service/59028)

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**Author:** [@Anto79-ops](https://discourse.nodered.org/u/Anto79-ops)\
**Replies:** 8\
**Last updated:** [26 February 2022 21:51 UTC](https://discourse.nodered.org/t/api-error-when-sending-notifcation-to-phone-call-service/59028 "2022-02-26T21:51:31Z")

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Hi! I have a notification system that notifies me via google assistant speakers when particulate matter (PM) is above a certain threshold. Works well sending the notification to my speakers BUT I als would like for it t…

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## [Recent change to Link Call node?](https://discourse.nodered.org/t/recent-change-to-link-call-node/59031)

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**Author:** [@daxliniere](https://discourse.nodered.org/u/daxliniere)\
**Replies:** 3\
**Last updated:** [26 February 2022 21:47 UTC](https://discourse.nodered.org/t/recent-change-to-link-call-node/59031 "2022-02-26T21:47:50Z")

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I had been using Link Call nodes for a few months, but the other day I found they had stopped working. I looked into it and the debug window says "Missing return node information", but I haven't changed the flow itself. …

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## [What does context.total mean?](https://discourse.nodered.org/t/what-does-context-total-mean/58997)

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**Author:** [@jbudd](https://discourse.nodered.org/u/jbudd)\
**Replies:** 5\
**Last updated:** [26 February 2022 21:47 UTC](https://discourse.nodered.org/t/what-does-context-total-mean/58997 "2022-02-26T21:47:19Z")

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In this simple flow, context.total holds a running total of msg.payload, yet there is no context.get or context.set. The debug panel Context Data shows empty for the Function node and the Flow. So what exactly is conte…

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## [Convert csv string to array](https://discourse.nodered.org/t/convert-csv-string-to-array/19088)

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**Author:** [@cymplecy](https://discourse.nodered.org/u/cymplecy)\
**Replies:** 9\
**Last updated:** [26 February 2022 20:52 UTC](https://discourse.nodered.org/t/convert-csv-string-to-array/19088 "2022-02-26T20:52:52Z")

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I feel this should be possible using basic nodes but I'm failing to acheive a result I've got and rgb triple coming in via MQTT as a csv string e.g 255,255,0 but I need to change it to an array to feed the WS2801 node …

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## [ZWave.js wont install on synology nas](https://discourse.nodered.org/t/zwave-js-wont-install-on-synology-nas/58960)

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**Author:** [@magicman](https://discourse.nodered.org/u/magicman)\
**Replies:** 7\
**Last updated:** [26 February 2022 19:40 UTC](https://discourse.nodered.org/t/zwave-js-wont-install-on-synology-nas/58960 "2022-02-26T19:40:02Z")

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hi, i am trying to install ZWave.js on a synology nas box, Node red installed perfectly and runs properly and other nodes all loaded apart from ZWave.js which fails on serial port fault, i can show the fault log if any…

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## [Join two strings in a SPECIFIC order after pressing ui\_button?](https://discourse.nodered.org/t/join-two-strings-in-a-specific-order-after-pressing-ui-button/59008)

<div class="topic-metadata">

**Author:** [@MandySteffen](https://discourse.nodered.org/u/MandySteffen)\
**Replies:** 10\
**Last updated:** [26 February 2022 18:34 UTC](https://discourse.nodered.org/t/join-two-strings-in-a-specific-order-after-pressing-ui-button/59008 "2022-02-26T18:34:25Z")

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Hello, there! I'm new here and a bit lost, to be honest. In my Dashboard, I want the user to type in numbers in two separate fields, then press a button. After this button is pressed, I need to join the two strings orig…

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## [Use websocket get data](https://discourse.nodered.org/t/use-websocket-get-data/59033)

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**Author:** [@lvalue](https://discourse.nodered.org/u/lvalue)\
**Replies:** 1\
**Last updated:** [26 February 2022 18:27 UTC](https://discourse.nodered.org/t/use-websocket-get-data/59033 "2022-02-26T18:27:31Z")

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Do you have any cases

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## [Sum number error?](https://discourse.nodered.org/t/sum-number-error/59027)

<div class="topic-metadata">

**Author:** [@Giamma](https://discourse.nodered.org/u/Giamma)\
**Replies:** 7\
**Last updated:** [26 February 2022 17:14 UTC](https://discourse.nodered.org/t/sum-number-error/59027 "2022-02-26T17:14:15Z")

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This is my simple function ... var x = msg.payload; var temp = x.toFixed(1); var tempNumber = parseFloat(temp); var z = (tempNumber + 0.3); node.status(tempNumber + " - " + z); global.set("var\_temperaturaCamerina", z); …

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## [Right way/better way: action if other entity inactive "recently"](https://discourse.nodered.org/t/right-way-better-way-action-if-other-entity-inactive-recently/59029)

<div class="topic-metadata">

**Author:** [@sblessley](https://discourse.nodered.org/u/sblessley)\
**Replies:** 1\
**Last updated:** [26 February 2022 16:57 UTC](https://discourse.nodered.org/t/right-way-better-way-action-if-other-entity-inactive-recently/59029 "2022-02-26T16:57:27Z")

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Noob here. I have two sensors, a PIR sensor outdoors, and a door switch. I want to trigger a response if there is motion sensed but the door sensor hasn't been triggered just before. The use-case is somebody's left a pac…

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## [Email node IDs and openwethermap API KEY disappears when copy flow.json](https://discourse.nodered.org/t/email-node-ids-and-openwethermap-api-key-disappears-when-copy-flow-json/58979)

<div class="topic-metadata">

**Author:** [@corso66](https://discourse.nodered.org/u/corso66)\
**Replies:** 4\
**Last updated:** [26 February 2022 16:41 UTC](https://discourse.nodered.org/t/email-node-ids-and-openwethermap-api-key-disappears-when-copy-flow-json/58979 "2022-02-26T16:41:12Z")

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Hi, I'm using these node packages : "node-red-node-email": "~1.14.0", "node-red-node-openweathermap": "~0.5.1" When i work in multi-users, and i copy original flow in an userDir, i see that this tow no…

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## [TCP Request Node Error not caught](https://discourse.nodered.org/t/tcp-request-node-error-not-caught/59021)

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**Author:** [@mlschuh](https://discourse.nodered.org/u/mlschuh)\
**Replies:** 1\
**Last updated:** [26 February 2022 15:39 UTC](https://discourse.nodered.org/t/tcp-request-node-error-not-caught/59021 "2022-02-26T15:39:57Z")

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Hello! I'm going to preface this with the fact that I'm running a rather old version, 1.0.3, for mostly political reasons. It's a production system that's been in place for many years and budget to update it, no matter …

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## [Node-red-contrib-advanced-ftp Access rights problem?](https://discourse.nodered.org/t/node-red-contrib-advanced-ftp-access-rights-problem/58968)

<div class="topic-metadata">

**Author:** [@struland](https://discourse.nodered.org/u/struland)\
**Replies:** 5\
**Last updated:** [26 February 2022 14:53 UTC](https://discourse.nodered.org/t/node-red-contrib-advanced-ftp-access-rights-problem/58968 "2022-02-26T14:53:04Z")

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Hello, In a node-contrib-advanced-ftp node I try to list a directory with workingDir parameter set. If I try it with workingDir = /sdcard the message is "Error: No such file or directory." If I try it for example…

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## [Count the messages uuid values](https://discourse.nodered.org/t/count-the-messages-uuid-values/59019)

<div class="topic-metadata">

**Author:** [@akashtalole](https://discourse.nodered.org/u/akashtalole)\
**Replies:** 3\
**Last updated:** [26 February 2022 14:29 UTC](https://discourse.nodered.org/t/count-the-messages-uuid-values/59019 "2022-02-26T14:29:05Z")

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I have a Message which has following data uuid (as String) Time Value I need to count uuid occurances and mantain its count. How I can solve using Count the messages ?

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## [Parsing JSON to text](https://discourse.nodered.org/t/parsing-json-to-text/59016)

<div class="topic-metadata">

**Author:** [@ravikumar](https://discourse.nodered.org/u/ravikumar)\
**Replies:** 2\
**Last updated:** [26 February 2022 11:39 UTC](https://discourse.nodered.org/t/parsing-json-to-text/59016 "2022-02-26T11:39:48Z")

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I have built a flow and was able to get required JSON data to show up in a table. But i am unable to store the values without the html in a text file. Please give some pointers on how to proceed. \[ { "id": "…

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