The PHP temporary folder is not set.

1. Please try editing your php.ini file and updating the following settings:After you make the changes and restart Apache, please go to the System -> System Information -> PHP Information section in the Joomla Admin area. Then, search for the values you updated "upload_max_filesize" and "post_max_size". There will be a few columns after each value. The first column is the "Local" value, which is what is currently being used. Please make sure that is at the 3M value you specified above to make sure the values took effect and then try the installation again.

2. Please verify that you have a temp directory set that is writeable. You can find it in System -> System Information > Configuration File for tmp_path and make sure it's writeable in Folder Permissions tab.

-Melissa

Actually, that shouldn't have the quotes. Please try again without them.

www.itoctopus.com/how-to-increase-the-ma...oomlas-media-manager

Please go into the Global Configuration - Server area of the Joomla admin area. In there is a setting for "Path to Temp Folder". Make sure that there is a path set for that setting, that the path exists on your system and that it's writable.

Once you do that, go to the System Information -> Directory Permissions area and look for the (Temp directory) setting and make sure it shows as writable there.

Hopefully that helps narrow down the issue, but if you need anything else, please let us know.

Thanks,
Alex

Could you try uploading the file directly to your server and then try the "Install from Folder" option in the Extensions > Install area?