问题
Hello every one i tried to create an camera app with react-native-camera module when i tried to run this app on my device (android mobile) getting following error. Can any one please provide me solution for this ?
回答1:
Go to file "MainApplication.java" (under .\android\app\src\main\java\com\projectName)
Make sure that under getPackages() function you don't have duplicate lines (in my case I had "new RCTCameraPackage()" twice).
Fix duplicate imports as well.
来源：https://stackoverflow.com/questions/44126722/canoverrideexistingmodule-issue-in-react-native-application