Dear Ismayil,
I have done everything as explained in the readme file everything works but the Sitemap generation tool alone is not it takes like 5 mins then it takes me to the error page "Page not Found". I am using Elgg 2.2.4 the latest hypeseo plugin.

Thank you
Meril

You used the Flintstone project, but codes are not included.

When I try to install the plugin, fatal error, class Flingtsont/Flingtstone not found

Title: Missing information in generated index sitemap

Context:

• Clean install of elgg v2.3.3 at location: localhost/elgg-2.3.3/
• Install of hypeseo plugin v1.0.2 from released package
• In hypeseo settings, "enable inline rewrites" set to "No" and "Enable redirects" set to "No"

Scenario:

• Go in admin seo sitemap page (localhost/elgg-2.3.3/admin/seo/sitemap), add click on "Generate sitemap" button
• Have a look at the generated sitemap index: localhost/elgg-2.3.3/sitemap.xml

<sitemapindex xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
  <sitemap>
    <lastmod>2017-07-25</lastmod>
  </sitemap>
  <sitemap>
    <lastmod>2017-07-25</lastmod>
  </sitemap>
  <sitemap>
    <lastmod>2017-07-25</lastmod>
  </sitemap>
</sitemapindex>

I had a quick look in the hypeo/view/default/seo/sitemap/sitemapindex.php view, and I think there is a small bug at line 14
$tags = elgg_format_element($tag, [], htmlentities($value, ENT_QUOTES, 'UTF-8')) . PHP_EOL;
Suggested fix:
$tags .= elgg_format_element($tag, [], htmlentities($value, ENT_QUOTES, 'UTF-8')) . PHP_EOL;

With the above sugested fix, the new generated sitemap index looks better:

<sitemapindex xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
  <sitemap>
    <loc>
      http://localhost/elgg-2.3.3/seo/sitemaps/static.xml
    </loc>
    <lastmod>2017-07-25</lastmod>
  </sitemap>
  <sitemap>
    <loc>
      http://localhost/elgg-2.3.3/seo/sitemaps/group1.xml
    </loc>
    <lastmod>2017-07-25</lastmod>
  </sitemap>
  <sitemap>
    <loc>http://localhost/elgg-2.3.3/seo/sitemaps/user1.xml</loc>
    <lastmod>2017-07-25</lastmod>
  </sitemap>
</sitemapindex>

What do you think?