You should not include the library library as a java library.
try using the ShowcaseView library as a module for your project:
Go to file> Project Structure ...
select "Modules" in the left pane, click the plus icon in the middle pane, and then select "Import Module" from the browser selection dialog in the ShowcaseView library
click next ... to finish the import (but notice the directory /gen of library unchecked)
Then go to the "Library" section in the left pane and select libs in the middle pane
if the library robolectric-2.2-20130909.210745-40-jar-with-dependencies.jar exists in the right pane, you must delete it.
Go to the Modules section and select the main project module in the middle pane and click the plus icon in the right pane and select Module Dependency... , then select the ShowcaseView library presented earlier.
Now you have to rebuild your project ...
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