Command failed with exit code 1

Question

I ran the project on React-native with the npm start command and waited to build it to a device such as an emulator or usb device. But I get the error as shown below, please help me, thank you

I want to be able to build on a virtual device or connect the phone via USB after running

image error detail

Answer 1

1. What is your react native version? Make sure you follow instruction from react-native document to config files in /android/gradle
2. Have you installed Android Studio Code and ARM properly, run react-native doctor to see what is missing. Run adb devices and make sure your simulator/devices that are connected through USB appear here.