I am new to Magento. I have cloned a repository of an existing website on my local machine using Sourcetree. The repository was on Bitbucket. I also have WAMP installed and have imported the database also. How do I launch my website on local machine? Do I need to install Magento 2.0 first and then merge the clone files with it? Any help/guidance will be much appreciated.
Do not try to "merge" a Magento 1.X site with Magento 2.X - it won't work!
Properly set up your local.xml file to point at your database
(optional - but a good idea) scrub all order and customer data from the DB before developing locally
Alter proper rows in core_config_data to point to your development domain (configured via your local nginx/apache)