I’m trying to publish a update of my application on google playstore.
because I activate the Google Play App Signing service for this app, I have to sign it with an upload certificate provided by the store in order to publish it.
I tried many ways to do that in unity without success
anybody knows how to do that?
Create keystore file “keystorefile” with unity. Then import “upload_cert.der” downloaded from google play console to keystore.
keytool.exe -importcert -file upload_cert.der -keystore <keystorefile>
Read more.
Hey!
From what you’ve described, it sounds like you followed the steps for a New App in the support page you linked. If so, you have to use the keystore and alias you used to signed your apk the first time, for all updates.
Background: If you opt in to let google handle the app signing for you, you just need to sign with the one key (the upload key) and google will manage your app-signing key.
If you didn’t make a keystore, you may have uploaded an unsigned app (which I don’t think you can publish).
If you’re managing your own keys however, the steps are different, and I can help with that too - just let me know.
If other people (like me) are not familiar with certificate and keystore stuff : I confirm that you'll need the keystore file that was generated when creating the app account (if the Google App signing is enabled (at the top of Release managment > App signing you'll get that information)). And because I thought it was maybe possible : you can't sign the generated apk with just a certificate. You need to have that keystore file or you'll need to recreate the app account because you can't opt out of the app signing option if enabled.
– ABerlemontI HAVE THE SAME problem . I uploaded my app without any signing key,now when i am about to put 5th update they are asking for keystore things . App signing is enabled for my game,what should i do ? Please mail me at niravmadhani03@gmail.com if anyone has answer
– Nirav-MadhaniI’m having the same problem. I don’t know how to sign an APK with the Upload certificate.
Google Play Dev. console gives you a certificate which you can download: upload_cert.der (as well as deployment_cert.der).
How can they be used? It’s nothing like a keystore.
If you sign with a newly created keystore, it rejects it saying that it need to be signed with Upload certificate.
Now I’m stuck as a result of opting for App Signing by mistake. The first time you upload an APK, if you don’t pay attention you may not realise that you are redirected to the App Signing section, if you don’t click opt-out at this point then you’re done!
Please help. Thank you.
It wasn't a Monoscript script though, it was a scriptable object, so that wasn't the problem.
– NattressHi. I just had this trouble myself and being really new to all this had to take some time work out the problem in more detail. winxalex answered the question, but if you need a step by step:
You need to download your certificate from your google play console.
You need to import your certification into the keystore you used the first time you exported from Unty. You probably saved that somewhere important.
You need to use a program called keytool.exe. The path to that program probably looks something like: C:\Program Files\Java\jdk1.8.0_192\bin
If you go there in windows explorer and type “cmd” into the address bar, it’ll open that location in the terminal.
You then need to use winxalex’ code above in the terminal (after having navigated to the location of keystore.exe, as you did in step 3
You need to point that code to your certificate and to the keystore you’re importing the ceritificate into. your final instruction will look something like the following:
keytool.exe -importcert -file “C:\Users\MyAccountName\DesktopOrWherever\deployment_cert.der” -keystore C:\Users\MyAccountName\DesktopOrWherever\user.keystore
keystore.exe will ask you for the password you used and whether you trust the app, then update the keystore
Make sure Unity is using that keystore when you export your app
Those are the steps that worked for me. I hope this helps others.
Hey ! I've did exactly what you say and key is succesfully imported but with warning. But unity cant see my newly imported key in the keystore. What might be the solution ?
– uberbaxI just noticed that you're calling the trigger function but expect the other object to NOT be a trigger (i.e. a regular collider) If you don't have a rigidbody attached to at least ONE of these colliders, the collision will never register. Take a look at the collision matrix at the bottom of this screen, it may help you plan your next strategy. https://docs.unity3d.com/Manual/CollidersOverview.html
– binaryuniverseActually, I just noticed that you said the interactions DO occur when they move. Let me keep looking at your code. How do you move your objects? Do you use transform.position translate or do you use physics.addforce or change velocity?
– binaryuniverseOK, I think I might see the problem. You're looking for both objects to be stationary and for the attack to register, but you selectively turn on and off the collider. OnTriggerEnter functions only occur during entry. You might be missing that (time-wise.) You could try using OnTriggerStay instead. The only detail is if you want discrete hits, you'll have to add a time counter to prevent hit spamming. So, register a hit immediately, then wait for e.g. 0.5 seconds before registering the next one (the time will depend on the constraints of your game.)
– binaryuniverseDid anybody find a solution to this? I can’t update my app. Can unity generate the APK using the upload cert?
I think there’s quite a bit of misunderstanding around this. This is how I eventually got it to work:
You don’t sign your app with the certificate downloaded from Google.
You also don’t import it into the keystore created by Unity. If you do so, Unity won’t see it because what you imported is only the public key, and you need the private key to sign the app. The private key is held by Google - you don’t have it.
So what you do is you create the keystore and key in Unity and sign your app with it - just like before.
In Google Play Console → App releases, you can see this:
"Let Google manage and protect your app signing key (recommended)
Enabled.
Upload key: The key you use to sign your first release. Sign every subsequent release with the same key to verify it’s from you. Keep your upload key safe. If it’s ever lost or compromised, contact developer support to replace it."
On the App Signing page there’s this:
"How it works
So what Google does is once you upload your app, they sign the app once again - this time with their private key. And the public key for that signature is what you downloaded from Google Play.
Users will now see that your app is signed not with your Unity upload key, but will Google’s. So if you want to register your app’s MD5 signature somewhere (like API providers), you need to use the certificate downloaded from Google - that’s the only reason you need it - you don’t sign with it.
Some more info about this:
https://stackoverflow.com/a/52923860/931409
The idea is that your upload key is only used to let Google know it’s you, and not distribute the app. And if you lose it you can ask Google to change it.
But if that key was used to actually distribute the app and you lose it - it’s game over. That’s why the distribution is done using Google’s key which hopefully is kept much safer 
If, like me, you came here because you are having issues with long iteration time while testing Google Play Games Services code …
My issue involved:
This thread is how I finally got that fixed.
Have you found a solution? I'm facing the same problem.
– Team_26Did anybody find a solution to this? I can't update my app. Can unity generate the APK using the upload cert?
– bsoyluogluPlease stop posting questions and comments as Answers!
– meat5000