When I try opening eclipse it opens, but it shows one error i.e Android SDK content Loader has encountered a problem.parseSdkContent failed
I got the same problem and killed my two hours to resolve the issues. I have checked my work space and got two projects where project.properties file #project target= android-10 as the similar target with one of my another project to integrate Facebook SDK. I have completely deleted one project and reinstalled Eclipse-Indio 4.2.1 and then resolve the problem. Good luck!!