No Java runtime present, requesting install : Mac OS, Flutter

Question

I am trying to generate keystore file using following command.

keytool -genkey -v -keystore ~/key.jks -keyalg RSA -keysize 2048 -validity 10000 -alias key

But getting following error.

No Java runtime present, requesting install.

I develop app using flutter and create APK for android, I am following below link https://flutter.io/android-release/

I don't know how to resolve this. So please help me.

atereshkov · Accepted Answer · 2020-03-10 12:04:42Z

22

/Applications/Android\ Studio.app/Contents/jre/jdk/Contents/Home/bin/keytool -genkey -v -keystore ~/key.jks -keyalg RSA -keysize 2048 -validity 10000 -alias key

Running this command should be okay. Just tested with the latest MacOS.

Note: make sure you have installed Android Studio

edited Mar 10, 2020 at 12:04

answered Feb 23, 2019 at 21:37

atereshkov

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5 Comments

LOG_TAG Over a year ago

/Applications/Android\ Studio.app/Contents/jre/jdk/Contents/Home/bin/keytool -alias androiddebugkey -keystore ~/.android/debug.keystore for debug

Brian Barcelona Over a year ago

when attempting to run the command I get a "No such file or directory"... (?)

atereshkov Over a year ago

@BrianBarcelona have you installed Android Studio? (+ jdk and jre)?

Brian Barcelona Over a year ago

@atereshkov no... I haven´t... a pointer would be useful... thanks for your comment!

Vijay Over a year ago

Thanks, some explanation for this command would be a huge help pls.

Shivang Agarwal · Accepted Answer · 2018-08-19 05:44:24Z

2

You have to install Java (Runtime) in your system as Android requires the same.

Follow below steps given in the links and try to run again.

https://java.com/en/download/help/mac_install.xml

When you are generating Flutter to Android apk. What is actually happening is your code is getting converted to android code and android requires java so that's why it's complaining for java.

I hope this helps.

answered Aug 19, 2018 at 5:44

Shivang Agarwal

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2 Comments

Kishan Vyas Over a year ago

I already installed Android Studio. And I am getting Java binary at this path : /Applications/Android Studio.app/Contents/jre/jdk/Contents/Home/bin/java

Shivang Agarwal Over a year ago

tru to run java -version on cmd and looks the output if it shows the java version then okey else you need to set the path to enviornment variables(PATH & JRE_HOME).

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