ERROR: Error while trying to download Jupyter-PHP dependencies with Composer.

[asa1997]

Facing this issue when running the command php jupyter-php-installer.phar install
Please do help me solve this.

OS: ubuntu 20.04

php > 7
zmq is enabled
jupyter is installed

O/p of php jupyter-php-installer.phar -vvv install

    [InvalidArgumentException]                                                                                                                                                 
    The package name jupyter-php-instance is invalid, it should be lowercase and have a vendor name, a forward slash, and a package name, matching: [a-z0-9_.-]+/[a-z0-9_.-]+  
                                                                                                                                                                               
  
  init [--name NAME] [--description DESCRIPTION] [--author AUTHOR] [--type [TYPE]] [--homepage HOMEPAGE] [--require REQUIRE] [--require-dev REQUIRE-DEV] [-s|--stability STABILITY] [-l|--license LICENSE] [--repository REPOSITORY] [-a|--autoload AUTOLOAD]
  
  
  ERROR: Error while trying to download Jupyter-PHP dependencies with Composer.

[qwqVictor]

Same issue here.