Hi Uwe

Have you followed the steps as described here and are still getting this error?.. https://www.joomla51.com/tutorials/demo-installer/setting-up-the-demo-installer

Ciaran

Hello Ciaran
I took some time to reply.

Yes - installed as described.
It's not my first installation either.

In addition to caitlin, we have now also installed the demo installations of other templates.
amelia, chloe, elvira, emani, jasmine, juliet, kinvara, layla, london, magnolia, nina, novah, riley, sophia and stella work.
The demo site can be installed.

bianca, caitlin and renita give error messages:

bianca:
JLIB_INSTALLER_ABORT_REFRESH_MANIFEST_CACHE
Der Zwischenspeicher der Manifest-Datei für die Erweiterung com_scheduler konnte nicht aktualisiert werden.
The cache of the manifest file for the com_scheduler extension could not be updated.

caitlin:
JLIB_INSTALLER_ABORT_REFRESH_MANIFEST_CACHE
Der Zwischenspeicher der Manifest-Datei für die Erweiterung mod_sampledata konnte nicht aktualisiert werden.
The cache of the manifest file for the mod_sampledata extension could not be updated.

renita:
JLIB_INSTALLER_ABORT_REFRESH_MANIFEST_CACHE
Der Zwischenspeicher der Manifest-Datei für die Erweiterung plg_multifactorauth_email konnte nicht aktualisiert werden.
The cache of the manifest file for the plg_multifactorauth_email extension could not be updated.

We would like to do our next project with caitlin.
At the moment only caitlin would be important for us.
We would also like to be able to use the demo installation for this purpose.
But there is no hurry yet.

greetings
Uwe

Hi Uwe

I have just updated to the latest Joomla version and rebuilt the demo installer for the Caitlin template which should hopefully resolve this issue. Could you check that this is the case? To obtain simply re-download from your template downloads.

Thank you

Ciaran

Hello Ciaran
I'm sorry, the problem persists. (see Appendix)
Both with Chrome and Edge.

Greetings
Uwe