Fix: CONNECT ERROR: The 'community' channel is not installed. Please use the MAGE shell script to install the 'community' channel.

CONNECT ERROR: The 'community' channel is not installed. Please use the MAGE shell script to install the 'community' channel.

To fix this issue just save Magento Conenct Settings.

Fix Magento Connect Manager installation issues

After a new Magento installation or Magento moving to another server,
Magento Connect Manager is throwing permissions errors like:
Warning: Your Magento folder does not have sufficient write permissions.

Fix Magento v1.4.1.x bug

Magento v1.4.1.x has a very serious bug in its core.