If you’re trying to install an extension using the Magento Connect Manager, the below error message will probably be a familiar site:

This can be fixed in 2 simple steps:

1. Make sure the FTP details are correct:
FTP Host: This needs to start with ftp://
FTP Login: FTP Username
FTP Password: FTP Password
Installation Path: Most of the time this will be /public_html/ or if you have the website in a sub directory /public_html/directory/

2. Make sure the folders have the correct permissions:
The following files/folders require writable permissions for normal Magento operation. This doesn’t always mean permissions of 777, It just depends on the server configuration.

• Downloader
• Var and all Subfolders
• Media
• App/etc/use_cache.ser

All other files can generally be set to 644 and directories to 755

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