React-native: Can not run "react-native run-android"

[ngocdb]

1. I join a react native project & I checkout all the project to local.
2. I setuped everything is OK.
3. I run the normal command for a react native project in android (with a opened emulator already)
4. But immediately after I run the command, I get the below error.
   react-native run-android
   Scanning 675 folders for symlinks in /media/datas/websites/groot/node_modules (18ms)
   JS server already running.
   Building and installing the app on the device (cd android && ./gradlew installDebug)...
   Could not install the app on the device, read the error above for details.
   Make sure you have an Android emulator running or a device connected and have
   set up your Android development environment:
   https://facebook.github.io/react-native/docs/android-setup.html

===>
There is no clue for me to check, it seems the command stop right after running without any scan on module. I can sure I have an opening emulator.
Please help, how can I debug the error ?

[dipernaa]

https://github.com/facebook/react-native/issues/8868

[ngocdb]

OK, thank you @dipernaa , it works!

[NarendraSingh88]

@dipernaa chmod 755 android/gradlew is not working for me. :(

[RajaSaravanan]

@dipernaa Thank you it works for me!

[oehc123]

@NarendraSingh88

@dipernaa chmod 755 android/gradlew is not working for me. :(

does not work for me either