Could not determine java version

在运行rn的安卓项目时,出现标题上的问题:

查了一通后发现是java的版本太新,是10.0.2,需要改成其它的8.0版本,参考这里说的:

https://github.com/gradle/gradle/issues/5764

In this case, Im currently have java 10 installed with brew cask and I just remove java 10 and downgrade into java8 using command below.

Uninstall java 10 that installed by brew cask.

```shell

brew cask uninstall java

```

Install java8 using brew cask.

```shell

brew tap caskroom/versions

brew cask install java8

```

Done.