Kindly help me on this error I get when I run this command:

enter image description here

The extension's composer.json:

"name": "veriteworks/m2-price",
"type": "magento2-module",
"license": [
"description": "Magento2 extension for Price.",
"version": "1.0.4",
        "name": "Hirokazu Nishi",
        "email": "nishi@veriteworks.co.jp",
        "homepage": "http://veriteworks.co.jp/",
        "role": "developer"
"require": {
    "php": "~5.5.0|~5.6.0|~7.0.2",
    "magento/module-store": "~100.0",
    "magento/module-backend": "~100.0",
    "magento/module-media-storage": "~100.0",
    "magento/framework": "~100.0",
    "lib-libxml": "*"
"autoload": {
    "files": [
    "psr-4": {
        "Veriteworks\\Price\\": ""


  • Did the vendor provide a private repository? The only module by this vendor listed on packagist.org is veriteworks/m2-japaneselocale – Danny Nimmo Feb 13 '17 at 2:52
  • @DannyNimmo According to the installation manual, I executed this command composer config repositories.veriteworksartifacts artifact ¥ /<Magento Installation Directory>/vendor/veriteworks/packages – Dean Feb 13 '17 at 2:57
  • An artifact repository is simply a folder containing zip files. Assuming the vendor provided you with a zip, check that you're passing in the correct path to this folder. – Danny Nimmo Feb 13 '17 at 3:07
  • @DannyNimmo Now I know what is wrong. I-unzip the file. Thanks man! – Dean Feb 13 '17 at 3:22

Posting my comments here as an answer.

Check that the module is listed on a public repository. If the vendor provided a private repository, check that this is accessible and configured correctly in your project's own composer.json.

In this case, the vendor provided instructions to use an artifact repository which is a folder on your local machine which should contain zip file packages of the module.

  • I had a similar problem, apparently I had 2 different magento.com accounts, and I was using user/pass on the one that did not have the package I was trying to install purchased! I switched the user/pass on ~/.composer/auth.json for repo.magento.com to the other one, and it worked. – Mac A. Jul 18 at 21:45

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