Could not find class
问题 My project ran well until I clicked " Help->Check for updates " and installed some components in Android SDK Manager. In general, there is no error announced in my project. But when I run my project, it causes an error could not find class com.androiquery.AQuery I checked out again, I still can see the AQuery library in libs folder and also the reference to this library. I also tried to clean the project and its dependencies, quite the eclipse, restart the computer, but it doesn't solve. Do