Getting this error message: dbModel read resource does not implement Zend_Db_Adapter_Abstract

http://magento.stackexchange.com/questions/80629/getting-this-error-message-dbmodel-read-resource-does-not-implement-zend-db-ada

After I put the right database connection I also changed this line:

false

into this

true

I gave recursively the 777 permission to the var folder using this command:

chmod -R 777 var