Glade: Object has unrecognized type GtkStack

Question

I get the following problem in Glade:

The app was originally made with GTK+ 3.20, but in my Ubuntu 16.04, I only have GTK+ 3.18.

Any sugesstions to fix this?

upgrade your Gtk framework or install the latest ubuntu.

José Fonte
– José Fonte

2018-02-06 15:35:40 +00:00
Commented Feb 6, 2018 at 15:35 — José Fonte
– José Fonte, Commented Feb 6, 2018 at 15:35

liberforce · Accepted Answer · 2018-02-07 11:31:31Z

1

You need to change the GTK+ version of the Glade file. GtkStack was introduced in GTK+ 3.10, so it will work with GTK+ 3.18. Most likely the version in the Glade file was set to 3.20, but you may set it to a lower value if you don't use newer APIs.

This is an old screenshot, but you get the point, you need to set an older toolkit version:

Note: My answer assumes that the application can run with older GTK+. If this is not the case, then you need to upgrade your GTK+ libriaries, or backport the application to GTK+ 3.18.

edited Feb 7, 2018 at 11:31

liberforce

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answered Feb 6, 2018 at 16:12

meskobalazs

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