Magento Connect: Extension unable to Install - Magento Community Edition

Question

I am working on a magento 1.9 e-commerce project tried to install a plugin through magento connect and this is the error i get :

SSL: no alternative certificate subject name matches target host name 'magento-community'

This occours when i insert the extension key and this happens when i try to upload the extension package:

CONNECT ERROR: Package file is invalid Invalid package name, allowed: [a-zA-Z0-9_-] chars Invalid version, should be like: x.x.x Invalid stability Invalid date, should be YYYY-DD-MM Invalid channel URL Empty authors section Empty package contents section

Answer 1

It's not safe to use Magento connect for installing extension , click this link for more information.

in the worst case, if you want immediate solution , Alternatively you can install the extension through FTP (like FileZilla). You can paste the extension key in this unofficial link and you can download the extension files. Let me know if you find any problems in this.

Note : As this is unofficial 3rd party site, there is no guarantee about security. but i tested many extensions, i did't faced any security problems....