CKEditor + ckfinder Integration can't upload pictures (files), what to do with

CKEditor + Ckfinder Integration cannot upload pictures (files)
Project integration of CKEditor, ckfinder two plug-ins, the page shows the ' upload ', ' Browse Server ' two buttons, but the upload did not succeed, prompting 404 error. Google search for a few hours did not solve, looking for expert guidance, thank you.

My Project Catalog


Page configuration (JS with two plugins already called):


Config.php method
function Checkauthentication ()
{
return false;
}
has been changed to return true;

$BASEURL = '/assets/components/ckfinder/userfiles/';


Where else should I configure it?



------Solution--------------------
Obviously did not find the file, on the one hand to see if the configuration is correct, on the other hand to track the look, what files can not find

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