I am having a difficulty with first time react-native run-android. The Error looks like this following

Question

FAILURE: Build failed with an exception.

What went wrong: A problem occurred

configuring project \':app\'.

Answer 1

FIX:

1. Make sure that java is installed on your system. Or install using linux command:

   $sudo apt-get install openjdk-8-jdk

2. Set JAVA_HOME environment variable. For linux

   JAVA_HOME="/usr/lib/jvm/java-1.8.0-openjdk-amd64"

   to /etc/environment file new line.

3. Make sure Android/Sdk is included in your home directory.(i.e. Assuming you have installed android-studio).

4. Export ANDROID_HOME in ~/.bashrc file.

   export ANDROID_HOME="$HOME/Android/Sdk" export PATH="$PATH:$ANDROID_HOME/tools" export PATH="$PATH:$ANDROID_HOME/platform-tools" source /etc/environment

Last tip: if you get watchman error everytime you close(ctrl+c) and open the JS server. run the following command.

echo 999999 | sudo tee -a /proc/sys/fs/inotify/max_user_watches && echo 999999 | sudo tee -a /proc/sys/fs/inotify/max_queued_events && echo 999999 | sudo tee -a /proc/sys/fs/inotify/max_user_instances && watchman shutdown-server