Sometimes I have this undefined error
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Latest Cumulus MX V4 release 4.4.2 (build 4085) - 12 March 2025
Latest Cumulus MX V3 release 3.28.6 (build 3283) - 21 March 2024
Legacy Cumulus 1 release 1.9.4 (build 1099) - 28 November 2014
(a patch is available for 1.9.4 build 1099 that extends the date range of drop-down menus to 2030)
Download the Software (Cumulus MX / Cumulus 1 and other related items) from the Wiki
If you are posting a new Topic about an error or if you need help PLEASE read this first viewtopic.php?p=164080#p164080
Undefined error !!
- meteotortosa
- Posts: 323
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- Weather Station: Davis Vantage Pro2 Plus
- Operating System: Windows XP SP3
- Location: Tortosa-Baix Ebre- Catalonia
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Undefined error !!
Hi to all
Sometimes I have this undefined error
. What do you think is happening?
Sometimes I have this undefined error
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Weather in Tortosa (NE Spain), updated every 15'

- daj
- Posts: 2041
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Re: Undefined error !!
Hi
I assume this is your site? http://www.meteotortosa.cat/web2/
Your site is highly customised from the standard template and I would say the error is possibly something to do with your javascript code being unable to find the data to build your page. (Possibly the JS is trying to read data that Cumulus is in the process of uploading). Or there may be a bug in the code which only surfaces occasionally.
Let me look a bit further into your site and see what I can find
I assume this is your site? http://www.meteotortosa.cat/web2/
Your site is highly customised from the standard template and I would say the error is possibly something to do with your javascript code being unable to find the data to build your page. (Possibly the JS is trying to read data that Cumulus is in the process of uploading). Or there may be a bug in the code which only surfaces occasionally.
Let me look a bit further into your site and see what I can find
- meteotortosa
- Posts: 323
- Joined: Thu 04 Dec 2008 12:15 am
- Weather Station: Davis Vantage Pro2 Plus
- Operating System: Windows XP SP3
- Location: Tortosa-Baix Ebre- Catalonia
- Contact:
Re: Undefined error !!
Yes, my web is www.meteotortosa.cat and web data is http://www.meteotortosa.cat/liveview/strict.htmdaj wrote:Hi
I assume this is your site? http://www.meteotortosa.cat/web2/
Your site is highly customised from the standard template and I would say the error is possibly something to do with your javascript code being unable to find the data to build your page. (Possibly the JS is trying to read data that Cumulus is in the process of uploading). Or there may be a bug in the code which only surfaces occasionally.
Let me look a bit further into your site and see what I can find
thanks daj
Weather in Tortosa (NE Spain), updated every 15'

- beteljuice
- Posts: 3292
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- Location: Dudley, West Midlands, UK
Re: Undefined error !!
I suspect, as daj suggests, there are times when the AJAX cannot find realtime.txt and the version you are running can't cope.
In an ideal scenario, if the ajax fails it does nothing - then the last 'good' ajax call remains - or - if it is the first call, you use <#webtags> where you can in the html, then because of the failure that doesn't get overwritten.
Does that make sense ?
In an ideal scenario, if the ajax fails it does nothing - then the last 'good' ajax call remains - or - if it is the first call, you use <#webtags> where you can in the html, then because of the failure that doesn't get overwritten.
Does that make sense ?
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