I was able to get S Beta 2 to come up on XAMPP Windows (as John suggested, some files were missing after unzipping - a mystery).
The “Install Omeka S Create First User” page appeared and I supplied the required information and pressed Submit. The page reappeared with the error:
There were errors during installation.
Invalid path to file.
To debug this, I created a new database and ran the install again from a debugger. An exception occurs in the install() function on line 68 of
application\src\Installation\Installer.php
which is trying to perform task
“Omeka\Installation\Task\InstallDefaultVocabularies\Task”
The exception is “Invalid path to file.” The file path is
"C:\xampp\htdocs\omeka-s-beta2\omeka-s\application\src\Service\RdfImporter.php"
That file exists.
At this point I’m stumped. Suggestions?