I followed the guidance in the Codex for creating a network. I'm in the early stages of creating a development multisite set up on localhost on a Mac using XAMPP.
Both XAMPP and WP are installed, and I got through the 'creating a network' process to the end where it asks you to login again, having cleared the cache and cookies. Then I get this message:
The server encountered an internal error and was unable to complete your request. Either the server is overloaded or there was an error in a CGI script.
If you think this is a server error, please contact the webmaster.
I've followed a number of threads but can't find a clear solution to this problem.
Any advice appreciated.