# Fehler im Debugfenster
**URL:** https://discourse.nodered.org/t/fehler-im-debugfenster/34779
**Category:** General
**Created:** [25 October 2020 14:14 UTC](https://discourse.nodered.org/t/fehler-im-debugfenster/34779 "2020-10-25T14:14:19Z")
**Posts on this page:** 20
**Page:** 1
### Author:  [@ArnoNhym](https://discourse.nodered.org/u/ArnoNhym)
#### Post date: [25 October 2020 14:14 UTC](https://discourse.nodered.org/t/fehler-im-debugfenster/34779/1 "2020-10-25T14:14:20Z")
Hallo zusammen
Ich habe das Problem, das ich im Debug nur Fehlermeldungen bekomme,
jedoch im Dashboard werden die Werte angezeigt...
function : (error)
"TypeError: Cannot read property 'temp' of undefined"
hier der Flow:
var msg1 = { payload: msg.payload.current.temp };
var msg2 = { payload: msg.payload.current.feels\_like };
var msg3 = { payload: msg.payload.current.dew\_point };
var msg4 = { payload: msg.payload.daily[0].temp.min };
var msg5 = { payload: msg.payload.daily[0].temp.max };
var msg6 = { payload: msg.payload.current.humidity };
var msg7 = { payload: msg.payload.current.pressure };
var msg8 = { payload: msg.payload.current.clouds };
var msg9 = { payload: msg.payload.current.visibility };
var msg10 = { payload: msg.payload.current.uvi };
var msg11 = { payload: msg.payload.current.weather[0].description };
return [msg1, msg2, msg3, msg4, msg5, msg6, msg7, msg8, msg9, msg10, msg11];
---
### Author:  [@Colin](https://discourse.nodered.org/u/Colin)
#### Post date: [25 October 2020 14:38 UTC](https://discourse.nodered.org/t/fehler-im-debugfenster/34779/2 "2020-10-25T14:38:28Z")
> [@ArnoNhym](#):
>
> TypeError: Cannot read property 'temp' of undefined"
That means that msg.payload.current does not exist. Feed what you are sending to the function node into a debug node and see what is there.
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### Author:  [@Steve-Mcl](https://discourse.nodered.org/u/Steve-Mcl)
#### Post date: [25 October 2020 14:41 UTC](https://discourse.nodered.org/t/fehler-im-debugfenster/34779/3 "2020-10-25T14:41:56Z")
Hello @ArnoNhym, welcome to the forum
If you can speak English, please do, unfortunately, it is the main spoken language.
> [@ArnoNhym](#):
>
> "TypeError: Cannot read property 'temp' of undefined"
Clearly, `payload: msg.payload.current` must be `undefined` meaning when you try to access `msg.payload.current.temp` you get this error.
Put a `debug` node BEFORE this function node & look at what is inside `msg.payload`
This may be of help to you - how to use the debug panel to find the right path to any data item.
[https://nodered.org/docs/user-guide/messages](https://nodered.org/docs/user-guide/messages)
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### Author:  [@ArnoNhym](https://discourse.nodered.org/u/ArnoNhym)
#### Post date: [25 October 2020 14:44 UTC](https://discourse.nodered.org/t/fehler-im-debugfenster/34779/4 "2020-10-25T14:44:23Z")
Im Dashboard werden die Werte ja korrekt angezeigt!!
Nur die Debugmeldungen verursachen einen Bufferüberlauf und mein Raspi wird immer langsamer 
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### Author:  [@Steve-Mcl](https://discourse.nodered.org/u/Steve-Mcl)
#### Post date: [25 October 2020 14:48 UTC](https://discourse.nodered.org/t/fehler-im-debugfenster/34779/5 "2020-10-25T14:48:33Z")
Hi again, it is almost impossible for me to assist with so little information.
I have no idea where them messages came from.
Perhaps if you share your flow or a screenshot with English comments I might be able to spot your issue.
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### Author:  [@ArnoNhym](https://discourse.nodered.org/u/ArnoNhym)
#### Post date: [25 October 2020 14:57 UTC](https://discourse.nodered.org/t/fehler-im-debugfenster/34779/6 "2020-10-25T14:57:42Z")
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### Author:  [@E1cid](https://discourse.nodered.org/u/E1cid)
#### Post date: [25 October 2020 14:59 UTC](https://discourse.nodered.org/t/fehler-im-debugfenster/34779/7 "2020-10-25T14:59:15Z")
What about the output from a debug node before the function, so we know whats in the payload.
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### Author:  [@Steve-Mcl](https://discourse.nodered.org/u/Steve-Mcl)
#### Post date: [25 October 2020 15:02 UTC](https://discourse.nodered.org/t/fehler-im-debugfenster/34779/8 "2020-10-25T15:02:00Z")
A screenshot of your function and the error message **is not enough for us to help you**
We already know this function throws an error `"TypeError: Cannot read property 'temp' of undefined"`
And as i already said...
> [@Steve-Mcl](#):
>
> Clearly, `payload: msg.payload.current` must be `undefined` meaning when you try to access `msg.payload.current.temp` you get this error.
>
> Put a `debug` node BEFORE this function node & look at what is inside `msg.payload`
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### Author:  [@ArnoNhym](https://discourse.nodered.org/u/ArnoNhym)
#### Post date: [25 October 2020 15:08 UTC](https://discourse.nodered.org/t/fehler-im-debugfenster/34779/9 "2020-10-25T15:08:37Z")
Es sind empfangene Werte von OpenweatherMap
Wie gesagt, ans Dashboard werden die Werte ja übergeben und auch angezeigt
Das ganze läuft auf einem Raspi Zero W
und durch die vielen Debug-Meldungen wird das Ding immer langsamer
oder kann man debug für dieses eine Element ausschalten??
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### Author:  [@Steve-Mcl](https://discourse.nodered.org/u/Steve-Mcl)
#### Post date: [25 October 2020 15:14 UTC](https://discourse.nodered.org/t/fehler-im-debugfenster/34779/10 "2020-10-25T15:14:06Z")
try using `var msg1 = { payload: msg.payload.current.tempc };` in your function.
And if you had read the link i posted earlier, it would have helped you. Here it is again...
[Working with messages : Node-RED](https://nodered.org/docs/user-guide/messages)
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### Author:  [@E1cid](https://discourse.nodered.org/u/E1cid)
#### Post date: [25 October 2020 15:24 UTC](https://discourse.nodered.org/t/fehler-im-debugfenster/34779/11 "2020-10-25T15:24:41Z")
Does not look like there is a current object either.
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### Author:  [@ArnoNhym](https://discourse.nodered.org/u/ArnoNhym)
#### Post date: [25 October 2020 15:25 UTC](https://discourse.nodered.org/t/fehler-im-debugfenster/34779/12 "2020-10-25T15:25:16Z")
Es sind alle Werte vorhanden, die ich anzeigen möchte ...
wenn ich das "current" weglasse, kommt die Fehlermeldung bei der mintemp
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### Author:  [@E1cid](https://discourse.nodered.org/u/E1cid)
#### Post date: [25 October 2020 15:29 UTC](https://discourse.nodered.org/t/fehler-im-debugfenster/34779/13 "2020-10-25T15:29:21Z")
msg.payload.daily[1].temp.min
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### Author:  [@ArnoNhym](https://discourse.nodered.org/u/ArnoNhym)
#### Post date: [25 October 2020 15:32 UTC](https://discourse.nodered.org/t/fehler-im-debugfenster/34779/14 "2020-10-25T15:32:43Z")
> [@E1cid](#):
>
> msg.payload.daily [1] .temp.min
"TypeError: Cannot read property '1' of undefined"
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### Author:  [@E1cid](https://discourse.nodered.org/u/E1cid)
#### Post date: [25 October 2020 15:36 UTC](https://discourse.nodered.org/t/fehler-im-debugfenster/34779/15 "2020-10-25T15:36:38Z")
Show us the expanded debug before the error.
Is openweather map sending two different weather json's
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### Author:  [@ArnoNhym](https://discourse.nodered.org/u/ArnoNhym)
#### Post date: [25 October 2020 15:42 UTC](https://discourse.nodered.org/t/fehler-im-debugfenster/34779/16 "2020-10-25T15:42:14Z")
yes
current weather and forecast
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### Author:  [@E1cid](https://discourse.nodered.org/u/E1cid)
#### Post date: [25 October 2020 15:43 UTC](https://discourse.nodered.org/t/fehler-im-debugfenster/34779/17 "2020-10-25T15:43:38Z")
then the json's will be different, You will need to have a conditional check as to which json you are working with at the time.
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### Author:  [@ArnoNhym](https://discourse.nodered.org/u/ArnoNhym)
#### Post date: [25 October 2020 15:45 UTC](https://discourse.nodered.org/t/fehler-im-debugfenster/34779/18 "2020-10-25T15:45:37Z")
OK, thanks, thats it !!
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### Author:  [@E1cid](https://discourse.nodered.org/u/E1cid)
#### Post date: [25 October 2020 15:47 UTC](https://discourse.nodered.org/t/fehler-im-debugfenster/34779/19 "2020-10-25T15:47:53Z")
try somthing like.
```auto
var msg1 = { payload: (msg.payload.current.temp || msg.to.other.json)};
```
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### Author:  [@system](https://discourse.nodered.org/u/system)
#### Post date: [24 December 2020 15:48 UTC](https://discourse.nodered.org/t/fehler-im-debugfenster/34779/20 "2020-12-24T15:48:16Z")
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