问题
I try to publish my app in a market that is not google play.when I try to install my app it say :(play protect does not recognize this app's developer.app from unknown developers can be unsafe) I think may the problem be from the sign of app.I get release with another app but the problem is stay. what is the problem?is it because of I did not publish in google play.or maybe from the sign.or maybe in the somewhere of my code?
thank you for your answers.
回答1:
Publish your App in Google Play to get rid of this error...
回答2:
The Google app bundle format uses your certificate from the app as an upload certificate. Google generates a new certificate after upload that is used for app signing. So since your app is not uploaded and published, there is no signing key, and app is blocked by play protect when you try to install it locally.
回答3:
I released 1.0 version earlier. Now released 1.1 version.
1.0 before uploading on to Play console, I was able to install signed release apk, no issues.
1.1 before uploading on to Play console, I was - not - able to install signed release apk, and failed.
Looks like, play protect gives this error for an already released version on play store, if so, so this message should be seen as normal.
Once the 1.1 is pushed to play store, I saw no issues, so this error was just a false negative and can be ignored if you are updating the app.
回答4:
Yes!
Because you are not publish through Google Play Store and Google Play Protect uses the list of registered developers to identify the app installed. Since you have not publish through play store before, you will always get that message.
Hope it helps!
来源：https://stackoverflow.com/questions/51835819/play-protect-does-not-recognize-this-apps-developer