This is still not working.
I have been manually copying the missing files to their directories from a copy of the 7.7.5 directories, after which the installer wants to remove them.
The following files do not exist in your install
(Make sure these are uploaded)
libs/fa/fa-brands-400.eot
libs/fa/fa-brands-400.svg
libs/fa/fa-brands-400.woff
libs/fa/fa-regular-400.eot
libs/fa/fa-regular-400.svg
libs/fa/fa-regular-400.woff
libs/fa/fa-solid-900.eot
libs/fa/fa-solid-900.svg
libs/fa/fa-solid-900.woff
libs/fa/version5151free
libs/phpmailer/class.phpmailer.php
libs/phpmailer/class.pop3.php
libs/phpmailer/class.smtp.php
libs/phpmailer/version5258
libs/smarty/version3136
ubb_js/tinymce/jquery.tinymce.min.js
ubb_js/tinymce/plugins/colorpicker/plugin.min.js
ubb_js/tinymce/plugins/contextmenu/plugin.min.js
ubb_js/tinymce/plugins/fullpage/plugin.min.js
ubb_js/tinymce/plugins/hr/plugin.min.js
ubb_js/tinymce/plugins/imagetools/plugin.min.js
ubb_js/tinymce/plugins/legacyoutput/plugin.min.js
ubb_js/tinymce/plugins/noneditable/plugin.min.js
ubb_js/tinymce/plugins/paste/plugin.min.js
ubb_js/tinymce/plugins/print/plugin.min.js
ubb_js/tinymce/plugins/spellchecker/plugin.min.js
ubb_js/tinymce/plugins/tabfocus/plugin.min.js
ubb_js/tinymce/plugins/textcolor/plugin.min.js
ubb_js/tinymce/plugins/textpattern/plugin.min.js
ubb_js/tinymce/plugins/toc/plugin.min.js
ubb_js/tinymce/themes/mobile/theme.min.js
ubb_js/tinymce/version551
The following files are reporting a wrong version number
(Make sure you updated these files)
All Files Report Proper Version Number
The following files need to be removed
libs/fa/fa-brands-400.eot
libs/fa/fa-brands-400.svg
libs/fa/fa-brands-400.woff
libs/fa/fa-regular-400.eot
libs/fa/fa-regular-400.svg
libs/fa/fa-regular-400.woff
libs/fa/fa-solid-900.eot
libs/fa/fa-solid-900.svg
libs/fa/fa-solid-900.woff
libs/fa/version5151free
So, the exact same files that the installer claims are missing are the files that the installer is removing.
I"m reverting back to 7.7.5 until this is resolved.