问题
I updated today the sdk to the new version and I've got a problem with the license. When my application starts with the new Google API lev. 19, I receive a "License has stopped" error. From logcat I can see this kind of error:
11-01 06:47:57.120: E/AndroidRuntime(991): FATAL EXCEPTION: main 11-01 06:47:57.120: E/AndroidRuntime(991): Process: com.android.vending, PID: 991 11-01 06:47:57.120: E/AndroidRuntime(991): java.lang.RuntimeException: Unable to instantiate application com.android.vending.VendingApplication: java.lang.ClassNotFoundException: Didn't find class "com.android.vending.VendingApplication" on path: DexPathList[[zip file "/system/app/LicenseChecker.apk"],nativeLibraryDirectories=[/vendor/lib, /system/lib]]
来源：https://stackoverflow.com/questions/19725265/license-error-with-android-4-4-emulator