Magento 2.1.6 Upgrade to 2.2.2 EE

[NexSupply_Admin]

I want to upgrade the Magento EE 2.1.6 version via composer

Comper.json

{
    "name": "magento/project-enterprise-edition",
    "description": "eCommerce Platform for Growth (Enterprise Edition)",
    "type": "project",
    "version": "2.1.6",
    "license": [
        "proprietary"
    ],
    "repositories": [
        {
            "type": "composer",
            "url": "https://repo.magento.com/"
        }
    ],
    "require": {
        "magento/product-enterprise-edition": "2.2.2",
        "composer/composer": "@alpha"
        
    },
    "require-dev": {
        "phpunit/phpunit": "4.1.0",
        "squizlabs/php_codesniffer": "1.5.3",
        "phpmd/phpmd": "2.3.*",
        "pdepend/pdepend": "2.2.2",
        "sjparkinson/static-review": "~4.1",
        "fabpot/php-cs-fixer": "~1.2",
        "lusitanian/oauth": "~0.3 <=0.7.0"
    },
    "config": {
        "use-include-path": true
    },
    "autoload": {
        "psr-4": {
            "Magento\\Framework\\": "lib/internal/Magento/Framework/",
            "Magento\\Setup\\": "setup/src/Magento/Setup/",
            "Magento\\": "app/code/Magento/"
        },
        "psr-0": {
            "": "app/code/"
        },
        "files": [
            "app/etc/NonComposerComponentRegistration.php"
        ]
    },
    "autoload-dev": {
        "psr-4": {
            "Magento\\Sniffs\\": "dev/tests/static/framework/Magento/Sniffs/",
            "Magento\\Tools\\": "dev/tools/Magento/Tools/",
            "Magento\\Tools\\Sanity\\": "dev/build/publication/sanity/Magento/Tools/Sanity/",
            "Magento\\TestFramework\\Inspection\\": "dev/tests/static/framework/Magento/TestFramework/Inspection/",
            "Magento\\TestFramework\\Utility\\": "dev/tests/static/framework/Magento/TestFramework/Utility/",
            "Magento\\ToolkitFramework\\": "dev/tools/performance-toolkit/framework/Magento/ToolkitFramework/"
        }
    },
    "minimum-stability": "alpha",
    "prefer-stable": true,
    "extra": {
        "magento-force": "override"
    }
}

Error while running the command composer update

$ composer update
Loading composer repositories with package information
Updating dependencies (including require-dev)
Your requirements could not be resolved to an installable set of packages.

  Problem 1
    - The requested package magento/product-enterprise-edition 2.2.2 exists as magento/product-enterprise-edition[2.1.6] but these are rejected by your constraint.

Kindly provide a solution.

[Tom Robertshaw]

There are instructions on how to upgrade using the command line here: http://devdocs.magento.com/guides/v2.1/comp-mgr/cli/cli-upgrade.html

How did you originally install Magento? 

I think it might be because you have this line in your composer.json file:

    "version": "2.1.6",

[NexSupply_Admin]

@Tom Robertshaw I am getting the same error even if I update the composer.json

 "version": "2.1.6"

$ composer update
Loading composer repositories with package information
Updating dependencies (including require-dev)

Spoiler

Your requirements could not be resolved to an installable set of packages.

Problem 1
- The requested package magento/product-enterprise-edition 2.2.2 exists as magento/product-enterprise-edition[2.1.6] but these are rejected by your constraint.

[Tom Robertshaw]

Did you remove that version line?

[blachly]

Removing the version line does not help with the error unfortunately. 

Other posts suggest matching the version line to the product version, but that is not working for my instance either. 

[Damian Culotta]

Hi @blachly,

What happens if you execute something like:

composer require magento/product-enterprise-edition 2.X.Y --no-update

Where X.Y is de minor number and Y the patch number.

Then, you can run:

composer update

Can you try that and share the result?
(Remember to use a Test environment and/or make a backup before any upgrade process)

[blachly]

Hi @Damian Culotta --

Looks like my issue was 2.3.3 was not available in the repo until today 

The following adjustments to my composer file worked:

Utility/"
        }
    },
    "version": "2.3.3",
    "minimum-stability": "stable",

    "require": {
        "elasticsearch/elasticsearch": "~6.1",
        "magento/extension-b2b": "^1.1",
...
        "magento/product-enterprise-edition": "2.3.3",
        "magento/sample-data-media": "100.3.*"

Thanks.