Errors on setup page

Reinstalling the plugin didn’t fix the warning messages.

A little more info – I am using htaccess and a root directory index.php file to handle having two different hosts on the same web server (dev & test.)

My htaccess file at web root looks like this (using generic urls and pretending my stage and live wordpress installs are at /stage/ and /live/):

# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>
# END WordPress
# rule to rewrite dev calls to dev site
Options +FollowSymLinks

RewriteCond %{HTTP_HOST} dev.mysite.com$ [NC]
RewriteCond %{REQUEST_URI} !^/stage/.*$
RewriteRule ^(.*) /stage/$1 [L]

# Rule to rewrite www (or not) calls to www site
RewriteCond %{HTTP_HOST} ^(www\.)?mysite.com$ [NC]
RewriteRule %{REQUEST_URI} !^/live/.*$
RewriteRule ^(.*)$ /live/$1 [L]

# END rewrites

and my index.php at web root looks like this:

<?php
/**
 * Front to the WordPress application. This file doesn't do anything, but loads
 * wp-blog-header.php which does and tells WordPress to load the theme.
 *
 * @package WordPress
 */
/**
 * Tells WordPress to load the WordPress theme and output it.
 *
 * @var bool
 */
 /**  This is added by JES 10/15/15 to address multiple sites on same server issue
 */
 $host = $_SERVER['SERVER_NAME'];
 $site = "stage";
 if(@host == ('www.mysite.com' | 'mysite.com' ))
 	{
 		$site = "live";
 	}
define('WP_USE_THEMES', true);

/** Loads the WordPress Environment and Template */
require( dirname( __FILE__ ) . '/'. $site .'/wp-blog-header.php' );

As you can see, I added a bit of php code to the basic WP index.php to make the one index.php work for both not-installed-at-root sites, in order to attempt to follow the wordpress instructions for moving your site to a subdirectory instead of leaving it at web root.

I am using the permalink config pre-set by the install, by the way. It has, after the site url: /%year%/%monthnum%/%day%/%postname%/

Perhaps I will try the default htaccess..