I am getting this message: The apk must be signed with the same certificates as the previous version. I read this: enter link description here
But here is my dilemma. This app was created by another developer. So i have all the files from him. Now i updated the app i am trying to upload it to market its giving me this error. Is there anyway to get this from project files i have from previous version of the app? By what name will this file be saved on the previous version? How can i reuse it.