Getting error 'App not installed as package appears to be invalid' when trying to install my game on Android. This has been happening since r255. I'm using the C3 build service.
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Mke sure to properly follow up the instructions for Building Android apps (APKs) in Construct 3, to first make a debug APK/unsigned release APK. Make sure to properly set your application properties in your PlayStore game's page, according with the type of release you are making.
And then make sure to properly follow the instructions in order to be Building a signed APK for Android in Construct 3.
Make sure you are signing each export using the proper keystore you generated the first time (and only THIS keystore, as indicated).