Is 'transition' an invalid resource directory name on Android?

Question

I make the ApiDemos project from Android Sample Project. Unfortunately, the project complains invalid resource directory name transition /ApiDemos/res line 1 Android

Answer 1

In case another bonehead like me comes here: I didn't have version 19 of the API installed :P

Open up your SDK manager and download any necessary version. I just had the latest version installed (22?).

Also, this was for Xamarin for me. But it could be the case for others, too.

Answer 2

Yes, transition resources are valid as of API 19.

To get rid of the error, make your build SDK API level 19 or higher.

To do that, in Eclipse/ADT, either

• open Project Properties, go to Android and select Project Build Target as API 19, or

• edit project.properties at project root and edit target to e.g. android-19

Of course, you will have to have SDK 19 installed with SDK Manager and have up-to-date build tools installed.