I have installed composer globally in /usr/local/bin on my debian 9 system. When i use composer to create project like composer create-project magic/xxxx_template ... I got this messages : "Installing dependencies (including require-dev) from lock file Your requirements could not be resolved to an installable set of packages. Problem 1 - Installation request for doctrine/annotations v1.6.0 -> satisfiable by doctrine/annotations[v1.6.0]. - doctrine/annotations v1.6.0 requires php ^7.1 -> your PHP version (7.0.33) does not satisfy that requirement. Problem 2 - Installation request for symfony/debug v4.2.3 -> satisfiable by symfony/debug[v4.2.3]. - symfony/debug v4.2.3 requires php ^7.1.3 -> your PHP version (7.0.33) does not satisfy that requirement. Problem 3 - symfony/debug v4.2.3 requires php ^7.1.3 -> your PHP version (7.0.33) does not satisfy that requirement. - symfony/console v3.4.22 requires symfony/debug ~2.8|~3.0|~4.0 -> satisfiable by symfony/debug[v4.2.3]. - Installation request for symfony/console v3.4.22 -> satisfiable by symfony/console[v3.4.22]. " I understand the messages that the project require php version more than the default 7.0 which composer use by default. I have installed on my machine php versions php 7.1 and php 7.2.2 but how to tell or force composer to use by default php version 7.2.2 ? I am told that i have to modify the composer.json file but which one ? i have many composer.json file on my debian 9 system. Should i reinstall composer ? Help please.
My first suggestion is to remove the composer you installed. Then do Code: apt-get install composer If your use case is such that the above easy solution is not acceptable, you can change default php version to 7.2 with Code: update-alternatives --config php update-alternatives --config php-cgi Do understand this breaks all PHP programs that do not work with that other PHP version.
Thanks You Taleman ! I am going to try your solution and let you know the results; Best regards. virk
I did what you suggested in the forum last week. update-alternatives --config php ---> (the first command show this) There is only one "alternative" in the php link group (which provides /usr/bin/php) Nothing to configure. update-alternatives --config php-cgi ((the second command show this) There is only one "alternative" in the php-cgi link group (which provides /usr/bin/php-cgi): /usr/bin/php-cgi7.0 Nothing to configure. I want my composer tu use php version 7.2 not 7.0. Thanks..
How were those extra PHP versions installed? If installed with apt-get they are shown in update alternatives. If stuff is available with apt-get, use that. Installing from outside Debian repositories causes more pain than usefulness. If you need extra PHP versions, use this method https://www.howtoforge.com/tutorial/how-to-install-php-7-for-ispconfig-3-from-debian-packages-on-debian-8-and-9/ Read also comments, especially comment by @Jesse Norell
Thanks you Mr Taleman. I got composer working now but having new database connection problems (SQLSTATE[HY000] [2002] No such file or directory) .. i think caused by a different instance of PHP being used by the PHP (php 7.3 / php 7.2 php 7.0 ..) As you let me know i will see the php extra version and read the comment by @jesse Norel
