CakePHP 3 Composer Installation Error - php

Question

I am trying to create a project as shown in the official Bookmarker Tutorial using the following command:
composer create-project --prefer-dist cakephp/app bookmarker
Then I see the following errors:
[RuntimeException]
Could not load package cakephp/migrations in http://packagist.org:
[UnexpectedValueException] Could not parse version constraint >=0.4.2
<1.0: Invalid version string "0.4.2 <1.0"
[UnexpectedValueException]
Could not parse version constraint >=0.4.2 <1.0: Invalid version
string "0.4.2 <1.0"
Then I run bin/cake server and see the following errors:
PHP Warning:
require(/Library/WebServer/Documents/bookmarker/vendor/autoload.php):
failed to open stream: No such file or directory in
/Library/WebServer/Documents/bookmarker/config/bootstrap.php on line
23 PHP Stack trace: PHP 1. {main}()
/Library/WebServer/Documents/bookmarker/bin/cake.php:0 PHP 2.
include() /Library/WebServer/Documents/bookmarker/bin/cake.php:31
Warning:
require(/Library/WebServer/Documents/bookmarker/vendor/autoload.php):
failed to open stream: No such file or directory in
/Library/WebServer/Documents/bookmarker/config/bootstrap.php on line
23
Call Stack:
0.0010 227136 1. {main}() /Library/WebServer/Documents/bookmarker/bin/cake.php:0
0.0021 237624 2. include('/Library/WebServer/Documents/bookmarker/config/bootstrap.php')
/Library/WebServer/Documents/bookmarker/bin/cake.php:31
PHP Fatal error: require(): Failed opening required
'/Library/WebServer/Documents/bookmarker/vendor/autoload.php'
(include_path='.:/usr/local/Cellar/php55/5.5.21/lib/php') in
/Library/WebServer/Documents/bookmarker/config/bootstrap.php on line
23 PHP Stack trace: PHP 1. {main}()
/Library/WebServer/Documents/bookmarker/bin/cake.php:0 PHP 2.
include() /Library/WebServer/Documents/bookmarker/bin/cake.php:31
Fatal error: require(): Failed opening required
'/Library/WebServer/Documents/bookmarker/vendor/autoload.php'
(include_path='.:/usr/local/Cellar/php55/5.5.21/lib/php') in
/Library/WebServer/Documents/bookmarker/config/bootstrap.php on line
23
Call Stack:
0.0010 227136 1. {main}() /Library/WebServer/Documents/bookmarker/bin/cake.php:0
0.0021 237624 2. include('/Library/WebServer/Documents/bookmarker/config/bootstrap.php')
/Library/WebServer/Documents/bookmarker/bin/cake.php:31
My system is OS X Yosemite 10.10.2, my PHP version is 5.5.21 and intl extension is enabled.
Are there anyone who had this issue or similar? Any solutions?

Answer 1

Run following command first (you might need to prepend this with sudo if composer was installed globally)
composer self-update
then again
composer create-project --prefer-dist cakephp/app bookmarker

Answer 2

The latest way to install CakePHP 3.2 is:
curl -s https://getcomposer.org/installer | php
php composer.phar create-project --prefer-dist cakephp/app bookmarker
First find out which version of PHP you are using, and find out where it is located.
> php -v
PHP 5.5.34 (cli) (built: Apr 22 2016 19:16:58)
Copyright (c) 1997-2015 The PHP Group
Zend Engine v2.5.0, Copyright (c) 1998-2015 Zend Technologies
> which php
/usr/bin/php
You need to have php version 7 as the primary one. I know of two options for you.
Copy the MAMP php file over to replace your /usr/bin/php file (you may also want to back it up.
(sudo mv /usr/bin/php /usr/bin/php5.5.34; sudo cp /Applications/MAMP/bin/php/php7.0.0/bin /usr/bin/php)
Order your system $PATH variable to the MAMP path for your php7 bin directory. You can also add this line to your ~/.profile so it will load every time you start the terminal.
export PATH="/Applications/MAMP/bin/php/php7.0.0/bin:$PATH";
Once these changes are made, you should be able to install cake without a problem, and your cake bake commands should also work.

Answer 3

if you go into your app folder and run
composer install
it might fix it.
If fix it for me!
Thanks