nothing work, i always cant access because of the oauth2 …
then how to disable the oauth2 identification ? or how to delete the associated applications and start again without making a new project ?
There are things as part of setting up Google Play Game Networking that are one time only things and if they are setup, all you can do is restart. Luckily you shouldn’t have to redo your entire app, but you may need to redo the entire game networking setup.
Rob
can you give me the steps to redo the entire game networking correctly, plz ?
Not really and here’s the reason. Google changes their website periodically. They change how it looks, how things are named and the order that things are done in. They don’t tell us when they do (nor do they tell any other framework provider). We simply cannot keep documentation on how to use Apple, Google and Amazon’s portals.
There is nothing Corona specific in setting up a game for Google Play Game Services. There should be plenty of tutorials and documentation from Google on the right steps.
i finally made everything work, thank you.
now, i know how important it is the SHA1, the keystore and the package name 
mmh do you know how to delete the useless linked apps ? ^^’