"react-native": "0.62.2" The production environment is not working

Whether or not the realm has not been updated for too long, resulting in incompatibility with the latest version of react-native. When I package RN applications, I run the apk file and feedback to me ‘keeps stopping’ to force the exit of the program

What debugging have you tried? Does it work in dev? Have you tried downgrading RN? Do you have the latest npm package? We’ll need way more info than you provided to help with this question.