i want to install a plugin on my 3.0.1 WordPress-Site, but it keeps failing:
Warning: array_keys() [function.array-keys]: The first argument should be an array in /home/x/y/xy.ch/htdocs/blog/wp-admin/includes/class-wp-upgrader.php on line 189
Die Plugininstallation ist fehlgeschlagen.
I have seen this error-message in ohter threads, but mostly after updating or moving installations. But I have not moved it. I have set it all up und worked on the theme. But the plugin installation is failing.
What can I do?
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