./test-slideshow.sh 

(zenity:5022): Gtk-WARNING **: Theme parsing error: gtk-widgets.css:2149:29: Expected a valid selector
Gtk-Message: GtkDialog mapped without a transient parent. This is discouraged.
rm -rf ./build/ubuntu po/ubuntu/.tmp ./build/kubuntu po/kubuntu/.tmp ./build/xubuntu po/xubuntu/.tmp ./build/lubuntu po/lubuntu/.tmp ./build/edubuntu po/edubuntu/.tmp ./build/ubuntustudio po/ubuntustudio/.tmp ./build/ubuntu-gnome po/ubuntu-gnome/.tmp ./build/ubuntukylin po/ubuntukylin/.tmp ./build/ubuntu-mate po/ubuntu-mate/.tmp ./build/oem-config-ubuntu po/oem-config-ubuntu/.tmp ./build/oem-config-ubuntu-mate po/oem-config-ubuntu-mate/.tmp ./build
mkdir -p ./build
mkdir -p build/xubuntu
cp slideshows/xubuntu/slideshow.conf build/xubuntu/slideshow.conf
mkdir -p build/xubuntu/slides
cp slideshows/xubuntu/slides/index.html build/xubuntu/slides/index.html
mkdir -p build/xubuntu/slides
cp slideshows/xubuntu/slides/06_thanks.html build/xubuntu/slides/06_thanks.html
mkdir -p build/xubuntu/slides
cp slideshows/xubuntu/slides/05_contribute.html build/xubuntu/slides/05_contribute.html
mkdir -p build/xubuntu/slides
cp slideshows/xubuntu/slides/04_support-live.html build/xubuntu/slides/04_support-live.html
mkdir -p build/xubuntu/slides
cp slideshows/xubuntu/slides/03_support.html build/xubuntu/slides/03_support.html
mkdir -p build/xubuntu/slides
cp slideshows/xubuntu/slides/02_desktop.html build/xubuntu/slides/02_desktop.html
mkdir -p build/xubuntu/slides
cp slideshows/xubuntu/slides/01_defaultapps.html build/xubuntu/slides/01_defaultapps.html
mkdir -p build/xubuntu/slides
cp slideshows/xubuntu/slides/00_welcome.html build/xubuntu/slides/00_welcome.html
mkdir -p build/xubuntu/slides/link-core
cp slideshows/xubuntu/slides/link-core/slideshow.js build/xubuntu/slides/link-core/slideshow.js
mkdir -p build/xubuntu/slides/link-core
cp slideshows/xubuntu/slides/link-core/jquery.js build/xubuntu/slides/link-core/jquery.js
mkdir -p build/xubuntu/slides/link-core
cp slideshows/xubuntu/slides/link-core/jquery.cycle.all.js build/xubuntu/slides/link-core/jquery.cycle.all.js
mkdir -p build/xubuntu/slides/link-core
cp slideshows/xubuntu/slides/link-core/base.js build/xubuntu/slides/link-core/base.js
mkdir -p build/xubuntu/slides/link
cp slideshows/xubuntu/slides/link/xubuntu.js build/xubuntu/slides/link/xubuntu.js
mkdir -p build/xubuntu/slides/link
cp slideshows/xubuntu/slides/link/triangledown.png build/xubuntu/slides/link/triangledown.png
mkdir -p build/xubuntu/slides/link
cp slideshows/xubuntu/slides/link/base.css build/xubuntu/slides/link/base.css
mkdir -p build/xubuntu/slides/images
cp slideshows/xubuntu/slides/images/xerus_art.png build/xubuntu/slides/images/xerus_art.png
mkdir -p build/xubuntu/slides/images
cp slideshows/xubuntu/slides/images/shot_panel.png build/xubuntu/slides/images/shot_panel.png
mkdir -p build/xubuntu/slides/images
cp slideshows/xubuntu/slides/images/logo_xubuntu.png build/xubuntu/slides/images/logo_xubuntu.png
mkdir -p build/xubuntu/slides/images
cp slideshows/xubuntu/slides/images/logo_xfce.png build/xubuntu/slides/images/logo_xfce.png
mkdir -p build/xubuntu/slides/images
cp slideshows/xubuntu/slides/images/logo_ubuntu.png build/xubuntu/slides/images/logo_ubuntu.png
mkdir -p build/xubuntu/slides/images
cp slideshows/xubuntu/slides/images/icon_empty.png build/xubuntu/slides/images/icon_empty.png
mkdir -p build/xubuntu/slides/images
cp slideshows/xubuntu/slides/images/icon48_thunderbird.png build/xubuntu/slides/images/icon48_thunderbird.png
mkdir -p build/xubuntu/slides/images
cp slideshows/xubuntu/slides/images/icon48_settings-manager.png build/xubuntu/slides/images/icon48_settings-manager.png
mkdir -p build/xubuntu/slides/images
cp slideshows/xubuntu/slides/images/icon48_pidgin.png build/xubuntu/slides/images/icon48_pidgin.png
mkdir -p build/xubuntu/slides/images
cp slideshows/xubuntu/slides/images/icon48_parole.png build/xubuntu/slides/images/icon48_parole.png
mkdir -p build/xubuntu/slides/images
cp slideshows/xubuntu/slides/images/icon48_libreoffice-writer.png build/xubuntu/slides/images/icon48_libreoffice-writer.png
mkdir -p build/xubuntu/slides/images
cp slideshows/xubuntu/slides/images/icon48_libreoffice-calc.png build/xubuntu/slides/images/icon48_libreoffice-calc.png
mkdir -p build/xubuntu/slides/images
cp slideshows/xubuntu/slides/images/icon48_gnome-software.png build/xubuntu/slides/images/icon48_gnome-software.png
mkdir -p build/xubuntu/slides/images
cp slideshows/xubuntu/slides/images/icon48_firefox.png build/xubuntu/slides/images/icon48_firefox.png
mkdir -p build/xubuntu/slides/images
cp slideshows/xubuntu/slides/images/bg_mouse_right.png build/xubuntu/slides/images/bg_mouse_right.png
mkdir -p build/xubuntu/slides/images
cp slideshows/xubuntu/slides/images/bg_mouse_left.png build/xubuntu/slides/images/bg_mouse_left.png
./Slideshow.py --path="./build/xubuntu" --controls
sys:1: PyGIWarning: Gdk was imported without specifying a version first. Use gi.require_version('Gdk', '3.0') before import to ensure that the right version gets loaded.
sys:1: PyGIWarning: Gtk was imported without specifying a version first. Use gi.require_version('Gtk', '3.0') before import to ensure that the right version gets loaded.
Traceback (most recent call last):
  File "<frozen importlib._bootstrap>", line 890, in _find_spec
AttributeError: 'DynamicImporter' object has no attribute 'find_spec'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "./Slideshow.py", line 4, in <module>
    from gi.repository import GLib, Gdk, Gtk, WebKit
  File "/usr/lib/python3/dist-packages/gi/importer.py", line 100, in find_module
    'introspection typelib not found' % namespace)
ImportError: cannot import name WebKit, introspection typelib not found
Makefile:126: recipe for target 'test.xubuntu' failed
make: *** [test.xubuntu] Error 1