I don't know what happened but I could not find any libproject inside google play services. I have just update it. My apk file has become jar file after cleaning the project, so I checked the google play services and I found that there is no libproject to add into the project. there are docs and samples but on libproject.
I haven't found any solution on the web, so I think it is best to post here. Is there any problem with this update?
Anyone, please give me any idea to solve this problem.