When attempting to install Craft 3 in OSX El Cap, I'm getting the following errors:

Script @php craft setup/welcome handling the post-create-project-cmd event returned with error code 255 /Craft3/vendor/craftcms/cms/bootstrap/bootstrap.php on line 104

Parse error: parse error in PATH/vendor/craftcms/cms/bootstrap/bootstrap.php on line 104 Script @php craft setup/welcome handling the post-create-project-cmd event returned with error code 255

I used the --ignore-platform-reqs flag as I am using PHP7 on MAMP.

When I attempt to load index.php in the browser I'm seeing this seemingly related issue in the trace:

in PATH/web/index.php at line 21 – yii\base\Application::run() 15161718192021 (new Dotenv\Dotenv(CRAFT_BASE_PATH))->load();}

// Load and run Craft define('CRAFT_ENVIRONMENT', getenv('ENVIRONMENT') ?: 'production'); $app = require CRAFT_VENDOR_PATH.'/craftcms/cms/bootstrap/web.php'; $app->run();

I've substituted "PATH" in all errors in lieu of the actual path.

Any advice on resolving this would be much appreciated.

  • Sounds like your executing the default PHP 5.x PHP install instead of MAMP's PHP 7. What if you run /path/to/MAMP/PHP7/php /path/to/composer.phar create-project...?
    – Brad Bell
    Oct 18, 2017 at 17:41
  • I was able to get a clean install and ran the setup in the CLI. I can now get to the CP login but nothing happens when I attempt to login. No error.
    – PhilR
    Oct 18, 2017 at 18:36
  • Started over at the top of the install and all is now working as expected. Thanks for your. help.
    – PhilR
    Oct 18, 2017 at 19:04
  • Glad you're all sorted... would you mind piecing together an official answer in case it ends up helping someone in the future?
    – Brad Bell
    Oct 18, 2017 at 19:29

2 Answers 2


In order to install under MAMP with PHP7 we added the MAMP PHP7 path with the following command:

export PATH="/Applications/MAMP/bin/php/php7.0.15/bin:$PATH"

After achieving a successful Craft 3 install we ran the setup in the CLI and we also created a fresh DB and a new MAMP host following the sequence recommended in the installation docs.

  • 1
    Note that you need to swap out php7.0.15 out for the exact version you are using. Just navigate to the directory in finder to double check.
    – Bonk
    Oct 22, 2017 at 1:00

According to this thread you can add

# Use MAMP version of PHP
PHP_VERSION=`ls /Applications/MAMP/bin/php/ | sort -n | tail -1`
export PATH=/Applications/MAMP/bin/php/${PHP_VERSION}/bin:$PATH

to .bash_profile.

This grabs your current php Version in MAMP and you can install it without setting --ignore-platform-reqs.

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