Cannot upgrade from old PO version
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I’ve PO 2.6.3 installed (WP 3.8). After upgrading to PO 4.0.2, a blank page is shown and the error message appears in the log:
“Call to undefined function wp_get_current_user()” in “post.php on line 2100”
This is related to https://www.ads-software.com/support/topic/broken-in-wordpress-37
Deleting the PluginOrganizerMU.class.php in the mu-plugins directory doesn’t help.
The fix mentioned in the above link is not useful. When applied, the blank page persists with some “Call to a member function using_permalinks() on a non-object” fatal errors in link-template.php core file and in /w3-total-cache/lib/W3/SharedPageUrls.php W3TC plugin file.
Thanks
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