[FIXED] composer requirements could be resolved to an installable set of packages - zendframework

Issue

Trying to deploy marketplacephp (marketplacephp.com) to localhost. Composer install is giving me dependencies issues and I've spent hours trying to tweak them so they work to no avail.

Is anyone more experienced able to spot how to fix this please?

P.S. Tried on both windows and ubuntu 14.04 with same results.

composer.json

"require": {
        "php": ">=5.3.3",
        "zendframework/zendframework": "2.3.*",
        "doctrine/mongodb-odm": "1.0.0-BETA11",
        "elasticsearch/elasticsearch": "1.3.0",
        "lusitanian/oauth": "~0.3",
        "geoip2/geoip2": "~2.0",
        "balanced/balanced": "1.*",
        "studio-42/elfinder": "2.*@dev",
        "reliv/elfinder" : "2.0.0-alpha",
        "stripe/stripe-php": "2.*"
    },
    "require-dev": {
        "zendframework/zend-developer-tools": "dev-master",
        "zendframework/zftool": "dev-master",
        "phpmd/phpmd": "1.5.*"
    }

output

C:\xampp\htdocs\marketplace-dev>composer install
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
    - Installation request for reliv/elfinder 2.0.0-alpha -> satisfiable by reliv/elfinder[2.0.0-alpha].
    - Conclusion: don't install zendframework/zendframework 2.3.9
    - Conclusion: don't install zendframework/zendframework 2.3.8
    - Conclusion: don't install zendframework/zendframework 2.3.7
    - Conclusion: don't install zendframework/zendframework 2.3.6
    - Conclusion: don't install zendframework/zendframework 2.3.5
    - Conclusion: don't install zendframework/zendframework 2.3.4
    - Conclusion: don't install zendframework/zendframework 2.3.3
    - Installation request for zendframework/zend-developer-tools dev-master -> satisfiable by zendframework/zend-developer-tools[dev-master].
    - Conclusion: don't install zendframework/zendframework 2.3.2
    - zendframework/zend-developer-tools dev-master requires zendframework/zend-debug ^2.5 || ^3.0 -> satisfiable by zendframework/zend-debug[2.5.0, 2.5.1].
    - don't install zendframework/zend-debug 2.5.0|don't install zendframework/zendframework 2.3.0
    - don't install zendframework/zend-debug 2.5.1|don't install zendframework/zendframework 2.3.0
    - reliv/elfinder 2.0.0-alpha requires zendframework/zendframework 2.* -> satisfiable by zendframework/zendframework[2.3.0, 2.3.1, 2.3.2, 2.3.3, 2.3.4, 2.3.5, 2.3.6, 2.3.7, 2.3.8, 2.3.9].
    - Conclusion: don't install zendframework/zendframework 2.3.1

Solution

Change "zendframework/zend-developer-tools": "dev-master" to "zendframework/zend-developer-tools": "^1.0"
dev-master is only good for early development time but should not be used long term. In this case current master branch of developer tools have higher minimum requirements than your project supports.

I should note that this set of dependencies hints that software you are trying to install was not updated for around 3 years.

Answered By - Xerkus