The installation package could not be found error returns after I hit install on http://localhost/ampps/ for most of the available packages such as Wikimedia.
I tried to find out where this error comes from such as updating setting in
http://localhost/ampps-admin/
and no success yet. Anyone with any recommendation? Thanks!
Delete the folder Ampps/ampps/scripts/mw and try installing again from http://localhost/ampps again.
Softaculous will download the package automatically if not found.