React Native error: “Could not determine java version from '9.0.1'.”

Question

I\'m working on MacOS and just starting with react-native.

One of the first steps to get started is to run: react-native run-android or

Answer 1

On MacOS, I ran the following commands:

brew cask uninstall java
brew tap caskroom/versions
brew cask install java8 "or just brew cask install java to install latest version"

Answer 2

I solve this by downgrading my JDK to 8.

Answer 3

On Ubuntu, you should run these command lines in the terminal:

sudo add-apt-repository ppa:webupd8team/java
sudo apt-get update
sudo apt install oracle-java8-installer
sudo apt install oracle-java8-set-default

Answer 4

I usually get this error when I forget to build the project using Android Studio. A simple sync and upgrading Gradle will do the work.

Answer 5

In your PROJECT_PATH/android/gradle/wrapper/gradle-wrapper.properties file, update your distributionUrl to the following:

distributionUrl=https\://services.gradle.org/distributions/gradle-5.0-all.zip

See related gradle distributions documentation

Answer 6

---- December 2018 --- keep attention --- React Native does not work with Java versions higher than 8, so you need to uninstall your 9.0.1 version. To do so, execute the following commands:

cd /Library/Java/JavaVirtualMachines/
ls -l

Identify the folder containing your Java Version, then remove it

sudo rm -rf jdk.x.x_xxx.jdk

After that you can download and install java 8 from oracle again. Refer to jdk8 download page