Node Red Crashes on Dropdown Menu Selection?

d0ublei · 19 January 2022 04:38

Hi all. Got a stumper here. I have been running my flows on a server for some time and using node red as a data collection tool. This is running on an older version of Node-Red, but i figured everything would come over ok in the newest release.

I am getting an error when trying to use the dropdown node. Node red will crash when i try to select one of the two options i am passing (from a change node). The options are ( from a select statement)

SELECT id FROM Grows : msg.payload : array[2]

array[2]

0: object

id: 55

1: object

id: 1

1 and 55 are displayed, but as soon as I select them node red crashes with the following:

18 Jan 23:29:32 - [red] Uncaught Exception:
18 Jan 23:29:32 - [error] TypeError: Cannot read property 'indexOf' of undefined
at Object.convertBack (/home/pi/.node-red/node_modules/node-red-dashboard/nodes/ui_dropdown.js:145:84)
at EventEmitter.handler (/home/pi/.node-red/node_modules/node-red-dashboard/ui.js:280:29)
at EventEmitter.emit (events.js:412:35)
at Socket.emit (events.js:400:28)
at Socket.emitUntyped (/home/pi/.node-red/node_modules/socket.io/dist/typed-events.js:69:22)
at /home/pi/.node-red/node_modules/socket.io/dist/socket.js:466:39
at processTicksAndRejections (internal/process/task_queues.js:77:11)
nodered.service: Main process exited, code=exited, status=1/FAILURE

Flows are below:
flows.json (3.7 KB)

This looks like a bug to me because it worked in an old version? Anyone have any ideas?

kuema · 19 January 2022 05:43

Sounds like it's related to this bug:

github.com/node-red/node-red-dashboard

Dashboard crashing on "integer" selection.

opened 12:59PM - 15 Jan 22 UTC

closed 09:38PM - 18 Jan 22 UTC

Ryonez

I updated various nodes today, one of which was the dashboard. Since doing so, I've encountered an issue with a dropdown selector. The dropdown node is being given this: ![image](https://user-images.githubusercontent.com/16157130/149621953-21c9058c-86ca-4283-84bc-1bd4e14bbe4e.png) Selecting the string works, but errors out down the line (Isn't actually processed). However, selecting the value that is desired, in this case 79403379 cashes node Red 90+% of the time with the following error: ``` 16 Jan 01:08:42 - [error] TypeError: Cannot read properties of undefined (reading 'indexOf') at Object.convertBack (/data/node_modules/node-red-dashboard/nodes/ui_dropdown.js:145:84) at EventEmitter.handler (/data/node_modules/node-red-dashboard/ui.js:280:29) at EventEmitter.emit (node:events:402:35) at Socket.emit (node:events:390:28) at Socket.emitUntyped (/data/node_modules/socket.io/dist/typed-events.js:69:22) at /data/node_modules/socket.io/dist/socket.js:466:39 at processTicksAndRejections (node:internal/process/task_queues:78:11) ``` The times it doesn't crash, it passes undefined as the payload. Even with striping the msg object right back, it still errors: ![image](https://user-images.githubusercontent.com/16157130/149622168-fdc59dd7-04ac-40d6-bc84-7d2b1436897c.png) ``` 16 Jan 01:45:36 - [error] TypeError: Cannot read properties of undefined (reading 'indexOf') at Object.convertBack (/data/node_modules/node-red-dashboard/nodes/ui_dropdown.js:145:84) at EventEmitter.handler (/data/node_modules/node-red-dashboard/ui.js:280:29) at EventEmitter.emit (node:events:402:35) at Socket.emit (node:events:390:28) at Socket.emitUntyped (/data/node_modules/socket.io/dist/typed-events.js:69:22) at /data/node_modules/socket.io/dist/socket.js:466:39 at processTicksAndRejections (node:internal/process/task_queues:78:11) ``` ### What are the steps to reproduce? Pass a msg with msg.options set. The first option is a string, the rest is a list of integers. Select one of the integers from the drop down box. ### What happens? Node red crashes with an exception. ### What do you expect to happen? For the dropdown box to pass the selected integer along as the msg.payload. ### Please tell us about your environment: - [ ] Node-RED-Dashboard version: 3.1.4 - [ ] Node-RED version: 2.1.5 - [ ] node.js version: 16.13.1 - [ ] npm version: 8.1.2 - [ ] Platform/OS: unRaid 6.9.2 - [ ] Browser: Vivaldi - [ ] Docker Image: nodered/node-red:latest-16

It should be fixed with the next release of the Dashboard package.

d0ublei · 19 January 2022 14:16

Yep. This is the same issue. Thanks for linking this! I'll post my flow there as well. Wish I was better at JS, i'd love to help fix this. Node-Red has been really useful to me.

kuema · 19 January 2022 14:18

Since the issue has already been closed, I guess it's fixed. So there's no need to post your flow there.

d0ublei · 19 January 2022 15:36

Yeah I see the commit here for the 3.1.5 release:

What is the usual lag time before this can be updated with npm?

dceejay · 19 January 2022 16:16

usually fairly short - but someone else mentioned another bug in dropdown and hasn't posted a way to repeat it so I'm waiting on that in case I can fix both, rather than do two releases.
If you want you can always install direct from git using

cd ~/.node-red
npm i node-red/node-red-dashboard

d0ublei · 19 January 2022 18:48

For some reason this is hanging when I try to install this (This is how i orignally installed the package):
pi@ABDC01 : ~/.node-red $ npm i node-red/node-red-dashboard

[..................] | rollbackFailedOptional: verb npm-session cbb1a380470aeb6a
It just hangs at the above line.

I uninstalled the package before doing this to see if that was the root cause, it was not.
Any ideas? This is on a Pi Zero so i get why its somewhat slow, but it should complete in at least 5 minutes.

dceejay · 19 January 2022 18:53

Hmm. I have seen it take ages from GitHub. Must admit yarn is a lot faster than npm.

Colin · 20 January 2022 09:25

On a Zero it might take a very long time when installing direct from git. I don't think it has been determined why that is the case. Give it a few hours before giving up. If you run top in another terminal you can see that it is still doing things.

d0ublei · 20 January 2022 15:53

It did eventually try to install but eventually failed with this error:

npm ERR! prepareGitDep gyp ERR! System Linux 5.10.63+

npm ERR! prepareGitDep gyp ERR! command "/usr/bin/node" "/home/pi/.npm/_cacache/tmp/git-clone-67b8b295/node_modules/node-gyp/bin/node-gyp.js" "rebuild" "--verbose" "--libsass_ext=" "--libsass_cflags=" "--libsass_ldflags=" "--libsass_library="

npm ERR! prepareGitDep gyp ERR! cwd /home/pi/.npm/_cacache/tmp/git-clone-67b8b295/node_modules/node-sass

npm ERR! prepareGitDep gyp ERR! node -v v14.18.1

npm ERR! prepareGitDep gyp ERR! node-gyp -v v3.8.0

npm ERR! prepareGitDep gyp ERR! not ok

npm ERR! prepareGitDep Build failed with error code: 1

Im going to be out of town until Monday but will try again then if the package hasn't been pushed to the official node-red repo yet

dceejay · 21 January 2022 16:09

Dashboard v3.1.5 now released

d0ublei · 23 January 2022 22:05

This fixed my issue! Thanks so much for the work on this module.

system · 6 February 2022 22:05

This topic was automatically closed 14 days after the last reply. New replies are no longer allowed.

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Node Red Crashes on Dropdown Menu Selection?

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