Facebook welcomes contributions to our SDKs. All contributors must sign a [contributor license agreement](https://code.facebook.com/cla). To contribute on behalf of your employer, sign the company CLA To contribute on behalf of yourself, sign the individual CLA All contributions: 1. MUST be be licensed using the Apache License, Version 2.0 2. authors MAY retain copyright by adding their copyright notice to the appropriate flies More information on the Apache License can be found [here](http://www.apache.org/foundation/license-faq.html) Setup: Run `./generate-projects.sh && open FacebookSDK.xcworkspace`. This will generate the Xcode projects and open the workspace.