Espresso not starting up

[pjohno]

Espresso not starting up, the following error is given in the extensions application:--

The settings of extension espresso@coadmunkee.github.com had an error:
```
TypeError: showEspressoBox.prepend is not a function
```

Stack trace:
```
EspressoWidget@/home/paulwork/.local/share/gnome-shell/extensions/espresso@coadmunkee.github.com/prefs.js:76:25
buildPrefsWidget@/home/paulwork/.local/share/gnome-shell/extensions/espresso@coadmunkee.github.com/prefs.js:411:20
_init@resource:///org/gnome/Shell/Extensions/js/extensionsService.js:207:40
OpenExtensionPrefsAsync/<@resource:///org/gnome/Shell/Extensions/js/extensionsService.js:122:28
asyncCallback@resource:///org/gnome/gjs/modules/core/overrides/Gio.js:132:13
run@resource:///org/gnome/Shell/Extensions/js/dbusService.js:175:20
main@resource:///org/gnome/Shell/Extensions/js/main.js:19:13
run@resource:///org/gnome/gjs/modules/script/package.js:222:19
start@resource:///org/gnome/gjs/modules/script/package.js:206:5
@/usr/share/gnome-shell/org.gnome.Shell.Extensions:1:17
```

[coadmunkee]

can you provide some details on your distribution and version of linux? I am pretty sure that error message means you have a Gnome version that is older than Gnome 40. Espresso does not support Gnome 3.x versions - but you can always use the Caffeine extension with older versions of Gnome.

[pjohno]

Yes I'm on ubuntu 20.04 so I probably need to go back to caffeine. Thanks!

[coadmunkee]

.... or you could upgrade to 20.10? Or maybe wait for Jammy Jellyfish in a month or so? :-)