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javaandroidcmdkeytool

keytool error: java.lang.Exception: The -keyalg option must be specified

I was generating my android app certificate in Windows 10 Administrator, this was the command I entered to generate the certificate for my app.

keytool -genkey -v -keystore c:\my-release-key.keystore -alias omar

Also as in the image you can see the error. But sorry for that but I am new to Android and this is a first time I was creating a certificate. Help is much appreciated.

The error is keytool error: java.lang.Exception: The -keyalg option must be specified

Password = " 123456 "

This question has been answer by Stephen. Thank you.

Solution

  • Like the error message in your screenshot says.

    The -keyalg option must be specified.

    The following works for me:

    $ keytool -genkey -keyalg RSA -v -keystore foo.jks -alias smith
Enter keystore password:  
Re-enter new password: 
What is your first and last name?
  [Unknown]:  steve
What is the name of your organizational unit?
  [Unknown]:  here
What is the name of your organization?
  [Unknown]:  there
What is the name of your City or Locality?
  [Unknown]:  here
What is the name of your State or Province?
  [Unknown]:  there
What is the two-letter country code for this unit?
  [Unknown]:  AU
Is CN=steve, OU=here, O=there, L=here, ST=there, C=AU correct?
  [no]:  yes

Generating 2,048 bit RSA key pair and self-signed certificate (SHA256withRSA) with a validity of 90 days
    for: CN=steve, OU=here, O=there, L=here, ST=there, C=AU
[Storing foo.jks]

    For more information, please refer to the Oracle KeyTool Documentation.