this is the error message I get in file manager:

Unable to copy file to storage directory. Please check permissions on your upload directory and ensure they can be written to by your web server.

Hi,
same problem here.

I had a look at he link/solution you pointed to; could you please clarify what I need to do (sorry, I am rather new with this.

Thanks,

Hi

you just have to find the file importer.php on your installation of concrete 5 and add the code:

private function generatePrefix() {
return null;
/*
$prefix = rand(10, 99) . time();
return $prefix;
*/
}

the file is here: /concrete/libraries/file/importer.php

I think that did it :-)

Hi shotrox,
many thanks for that (I had so many frustrating hours trying to sort the problem of uploading images and I was to the point of giving up C5 on Plesk) -- it does indeed work... :)

I upload images and packages via FTP and now I can use File Manager to import from the incoming/ folder (while Add-ons can be installed via 'Add functionality').

It is still a shame that the direct upload and installation via File Manager does not work under Plesk.
Some people talk about modifying php.ini, what are your thoughts on this?

it seems that new files try to be created with user "apache" on the server... I feel that has to do with the issue?

I just found a solution - sorry for posting a new thread!

This works great:

http://www.concrete5.org/community/forums/installation/plesk_safe_m...