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I had to move my solution from one server to another. I therefore Exported all data so that I could import this on the new server.

All worked fine except users.

If I want to edit my own profile, all is well.
But if I try to edit another user profile, I get these error messages:

Notice: Undefined property: WP_User::$rich_editing in I:\Development\wamp\www\storelocator\wp-admin\user-edit.php on line 199


Notice: Undefined property: WP_User::$nickname in I:\Development\wamp\www\storelocator\wp-admin\user-edit.php on line 285

After I imported data from the other server, all nicknames have this text:
<br /><font size='1'><table class='xdebug-error' dir='ltr' border='1' cellspacing='0' cellpadding='1'><tr><th align='left' bgcolor='#f57900' colspan=

If I click Update, data is stored and the error messages goes away.

What could be the cause of this?

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One of the reasons could be that while exporting/importing the data the server debug or 'WP_DEBUG' must have been true for warnings/errors. Hence they must have cropped up in the export file.

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