Why does IntelliJ IDEA 13 require both lib project and lib itself (google-play-service) to be added as a dependency?
问题 Reading Google instructions, I found that I have to import and reference the Play Service library into the project. So I created a project, copied google-play-service_lib project, imported it as a library project, went to the main project and added this library as a Module dependency . However, I still have an error that IntelliJ IDEA does not recognize package com.amazon.device.ads.* . So I had to add a library dependency as well, although this library already exists in the /lib directory of