I was running the above mentioned plugin and had to delete it for some reason. Afterwards I was still able to install it, but it refused to get activated with this message:
Fatal error: Call-time pass-by-reference has been removed in /Applications/MAMP/htdocs/wordpress2/wp-content/plugins/wordpress-shortcode-library/hlt-wordpress-shortcode-library.php on line 114
I have tried it a couple of times and always deleted the plugin before. I’ve even set up a whole new installation of WordPress. Doesn’t work either.
Anybody any idea?