TOPIC: Error messages confusing after installation attempt

These error messages are confusing after installation attempt:

What do they indicate?

error when moving .... administrator/components/com_comment/plugin/joscomment.php
TO /var/www/vhosts .... plugins/content/joscomment.php

error when moving /var/www/vhosts......administrator/components/com_comment/plugin/joscomment.xml
TO /var/www/vhosts......../plugins/content/joscomment.xml

error when moving /var/www/vhosts......./administrator/components/com_comment/plugin/josccleancache.php
TO /var/www/vhosts/......../plugins/system/josccleancache.php

error when moving /var/www/vhosts........administrator/components/com_comment/plugin/josccleancache.xml
TO /var/www/vhosts........plugins/system/josccleancache.xml

Please help. Thanks.

Sincerely,
Boyd Reimer

JonusC wrote a hundred times before:

Sounds like a permissions issue. CHMOD all folders to 755 and all files to 644. The tmp, logs and media folder sometimes have to be 777 though if the server is not 100% Joomla compatible. Also mke sure you have the FTP Layer enabled in the Global Configuration - this ensures that extensions via ZIP upload can be installed with full user permissions.