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When I use gedit, there is warning shown:

(gedit:3166): Gtk-WARNING **: GtkScrolledWindow 0x236cd10 is mapped but visible child GtkScrollbar 0x2307ab0 is not mapped

How can I fix it ?

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3 Answers 3

up vote 3 down vote accepted

Reinstall overlay-scrollbar .I hope it will fixed your problem .

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It was a bug in overlay-scrollbar which has been fixed here at launchpad. It has been fixed.

So just run

sudo apt-get update
sudo apt-get install overlay-scrollbar
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If it's a fixed bug at the time of this answer-post (17 May 2014), then wouldn't have standard software updates of ubuntu fix it by this comment (21 May 2014)? It seems that there is a bug in the software updates related to this because a re-installation of the same version overlay-scrollbar solved the problem. Weird! – user29020 May 21 '14 at 16:56
what this error means? Is there any change in data alignment or mixing in between rows,when this error is shown by gedit. – hunch Oct 11 '14 at 4:10

Until the update has been revised past 14.04, go ahead and reinstall the package:
sudo apt-get --reinstall install overlay-scrollbar

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