Because of your info, I was able to get my first app game up and running in Google Play Store. I thank you very much and to any who would like to check it out, I'll provide the link! Its a Match Card game with a twist! I hope you'll enjoy it. Thanks again.
I try to download the file and it's asking me to save 'attachment.php'?
I followed the instructions and i'm still having trouble in publishing my app, i made the keystore without a problem and linked with the apk (with the path of the keystore) but when i try to upload the game in the "Google Play Developer Console" a message appears that i have a "certificate that isn┤t valid" and that i need to "sign my app with a valid certification" and i don┤t know what does this means, Can you help me?