Manual talk:Common errors and symptoms

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Previous discussion was archived at Manual talk:Errors and symptoms/Archive 1 on 23 January 2019.

Hi ,

I am using mediawiki 1.30 . I am facing an issue that my content which i previously put , is shown. But when I try edit the content , the edit page shows blank. I don't know. why?

I am new to media wiki. Kindly help.

Please see https://www.mediawiki.org/wiki/Manual_talk:Common_errors_and_symptoms which says "Please do not post support questions here."

The heading with {{int:sessionfailure}} does not render as a heading because it was a lost translation unit. Now it's impossible to restore as a proper heading.

It renders as a heading perfectly fine for me. Is this a problem with one of the languages? In that case which one?

Manual:Common errors and symptoms#Warning: Invalid argument supplied for foreach() in ./includes/objectcache/SqlBagOStuff.php

There's supposed to be a third-level heading instead of the bare equals signs. This even happens in the original, English, version of the page.

Ohhh, I got very confused because this heading is duplicate (you can search for "Manual:How to debug/Login problems" and it appears twice)

It appears that when read only mode ($wgReadOnly) is active, you might also see this error.

When you see this error message on pages or for some files in your file list, you can try to remove $wgReadOnly from your LocalSettings.php.

Feel free to add that paragraph

Thank you for the quick reply.

I do not have permission to edit semi-protected pages. Perhaps someone who does have permission can add the following underneath the existing paragraph of 'Unable to save thumbnail to destination':

This error can also occur when read only mode ($wgReadOnly) has been set in LocalSettings.php. You can try to remove $wgReadOnly to see if that solves the issue for you.