# 2 msg.topic in calculation function node
**URL:** https://discourse.nodered.org/t/2-msg-topic-in-calculation-function-node/4526
**Category:** General
**Created:** [3 November 2018 13:14 UTC](https://discourse.nodered.org/t/2-msg-topic-in-calculation-function-node/4526 "2018-11-03T13:14:40Z")
**Posts on this page:** 5
**Page:** 2
### Author:  [@Colin](https://discourse.nodered.org/u/Colin)
#### Post date: [24 November 2018 13:45 UTC](https://discourse.nodered.org/t/2-msg-topic-in-calculation-function-node/4526/22 "2018-11-24T13:45:39Z")
There seems to be something horribly wrong. What do you see in the logs when you restart node-red? Dependent on what o/s you are running you may be able to do that using
```auto
node-red-stop
node-red-start
```
---
### Author:  [@ukmoose](https://discourse.nodered.org/u/ukmoose)
#### Post date: [24 November 2018 16:44 UTC](https://discourse.nodered.org/t/2-msg-topic-in-calculation-function-node/4526/23 "2018-11-24T16:44:28Z")
Given the old version of npm you were running, I would suggest following the advice Dave gave you on the other thread to upgrade your npm version and node-red using the script and see if that fixes this.
---
### Author:  [@nick](https://discourse.nodered.org/u/nick)
#### Post date: [26 November 2018 18:20 UTC](https://discourse.nodered.org/t/2-msg-topic-in-calculation-function-node/4526/24 "2018-11-26T18:20:39Z")
sow i have upgrade everything, but it is still the same.
see start up log file below.
# Starting as a systemd service. Started Node-RED graphical event wiring tool. 26 Nov 18:15:56 - [info] Welcome to Node-RED
## 26 Nov 18:15:56 - [info] Node-RED version: v0.19.5 26 Nov 18:15:56 - [info] Node.js version: v10.13.0 26 Nov 18:15:56 - [info] Linux 4.9.59-v7+ arm LE 26 Nov 18:15:57 - [info] Loading palette nodes 26 Nov 18:16:02 - [info] Dashboard version 2.11.0 started at /ui 26 Nov 18:16:02 - [warn] ------------------------------------------------------ 26 Nov 18:16:02 - [warn] [node-red-contrib-join/join] Type already registered 26 Nov 18:16:02 - [warn] ------------------------------------------------------ 26 Nov 18:16:02 - [info] Settings file : /home/pi/.node-red/settings.js 26 Nov 18:16:02 - [info] Context store : 'default' [module=memory] 26 Nov 18:16:02 - [info] User directory : /home/pi/.node-red 26 Nov 18:16:02 - [warn] Projects disabled : set editorTheme.projects.enabled=true to enable 26 Nov 18:16:02 - [info] Flows file : /home/pi/.node-red/flows\_raspberrypi.json 26 Nov 18:16:02 - [info] Server now running at [http://127.0.0.1:1880/](http://127.0.0.1:1880/) 26 Nov 18:16:02 - [warn]
## Your flow credentials file is encrypted using a system-generated key. If the system-generated key is lost for any reason, your credentials file will not be recoverable, you will have to delete it and re-enter your credentials. You should set your own key using the 'credentialSecret' option in your settings file. Node-RED will then re-encrypt your credentials file using your chosen key the next time you deploy a change.
26 Nov 18:16:03 - [info] Starting flows
26 Nov 18:16:03 - [info] Started flows
26 Nov 18:16:03 - [info] [mpd-server:55dd1a9d.c15af4] Connected to MPD server localhost:6600
---
### Author:  [@dceejay](https://discourse.nodered.org/u/dceejay)
#### Post date: [26 November 2018 18:35 UTC](https://discourse.nodered.org/t/2-msg-topic-in-calculation-function-node/4526/25 "2018-11-26T18:35:24Z")
Ah - you have added a contrib node called join,,, and it is clashing with the built in node called join... so you must uninstall the one you added in.... then restart
---
### Author:  [@nick](https://discourse.nodered.org/u/nick)
#### Post date: [28 November 2018 18:28 UTC](https://discourse.nodered.org/t/2-msg-topic-in-calculation-function-node/4526/26 "2018-11-28T18:28:11Z")
So I Removed the contrib node called join and now i got it to workt.
thanks all for helping.
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