# Problem in latest.rss / Not a Valid Feed, it says!

**URL:** <https://meta.discourse.org/t/problem-in-latest-rss-not-a-valid-feed-it-says/55466>\
**Category:** Product Support\
**Created:** [2017 年 1 月 10 日午前 8:27 UTC](https://meta.discourse.org/t/problem-in-latest-rss-not-a-valid-feed-it-says/55466 "2017-01-10T08:27:59Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![elijah](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/elijah/32/104055_2.png) [@elijah](https://meta.discourse.org/u/elijah)\
**Post date:** [2017 年 1 月 10 日午後 9:08 UTC](https://meta.discourse.org/t/problem-in-latest-rss-not-a-valid-feed-it-says/55466/3 "2017-01-10T21:08:10Z")

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Those are fairly minor errors in the RSS.

> [@](#):
>
> This feed does not validate.  
> line 7, column 19: language must be an ISO-639 language code: fa\_IR [help]
> 
> ```
> <language>fa_IR</language>
> 
> ```

I believe the correct code is `fa-ir` with a hyphen not an underscore. I think this is the only one that might cause problems.

> [@](#):
>
> line 9, column 98: Self reference doesn’t match document location

You gave the validator an `https:` URL and the page there said that it is an `http:` resource. Super minor.

> [@](#):
>
> In addition, interoperability with the widest range of feed readers could be improved by implementing the following recommendations.
> 
> line 2, column 0: Use of unknown namespace: [http://www.discourse.org/](http://www.discourse.org/)

That validator isn’t familiar with Discourse specifics. Not a big deal.

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