error Failed to install the app. Make sure you have the Android development environment set up: https://reactnative.dev/docs/environment-setup. Run CLI wit h --verbose flag for more details. Error: Command failed: gradlew.bat app:installDebug -PreactNativeDevServerPort=8081 [Fatal Error] gradle-3.1.4.pom:7:3: The element type "hr" must be terminated by the matching end-tag "".

When i built this project, then this errors show. I have try to write ./gradlew clean and added some syntax into gradle.properties and also into gradle-wrapper.properties. Any one can help?

CodePudding user response：

try to run this command

react-native doctor

and then if its showning some error , press f to fix the issues

CodePudding user response：

open your 'settings.grandle' file in the android folder

change the '\' to '/'

save the file

run the command 'react-native run-android