apparently composer is having problems understanding version definitions. after installing composer using the official guide here: https://getcomposer.org/download/ i tried stuff like composer install or composer update, but every command returns the following error message:
Could not parse version constraint >=7.4.*: Invalid version string "7.4.*"
php version: 7.4.28
composer version: 2.3.5
i did not set up composer for this project, i just want to add a library. usually i just download the php files directly as this is far more efficient, but someone decided this project needs to use composer and now we are in this mess.
does anyone know what the problem is?
Afaik just 7.4 works - and from my logical assumption this should also include 7.4.* ;)
I want to use latest stable laravel 8.0 version for windows. but I cannot install using cmd. I want to crate new laravel project so I tried with this command which is available in laravel documentation.
cmd command .
composer create-project --prefer-dist laravel/laravel:^8.0 blog
Hope this helps : https://www.sitepoint.com/how-to-install-php-on-windows/ .
Download the PHP 8 using command and do the needful configuration.
What you are trying to do is run a composer script in a PC which does not have PHP installed.
First, download PHP from here;
PHP Windows download
Then, install composer from here;
Composer installation instructions
Both links have instructions on how to proceed with the installations. After you do both these, you can run that composer command in the command line.
I hope you know that composer is a dependency manager and PHP is the interpreter of the language. Happy coding.
I have been writing laravel code for quite sometime. Currently, I tried cloning a project from github and editing locally. I installed composer in my project directory but a vendor folder was not included, I tried to run composer install but I gives me this error
Your lock file does not contain a compatible set of packages. Please run composer update
How do I resolve this?
Note: I have tried running composer update on previous clones and that didn't work.
Run this command:
composer install --ignore-platform-reqs
or
composer update --ignore-platform-reqs
Disclaimer, this solution will not fix the issue for PHP 8 projects.
In most cases this happens because of PHP 8 (In my case it was GitHub CI actions automatically started using PHP 8 even though my project is php 7.4)
If you have multiple PHP installations (E.g. 7.4 and 8 on the same server), this is how you can fix it.
Specify your php version in your composer.json file
"config": {
"platform": {
"php": "7.3"
}
},
If you have the lock file already committed, run composer update after you adding above line in to the composer.json and then commit the new lock file. (Please be aware composer update will upgrade your packages to latest versions)
I solved this problem with this command:
composer self-update --1
It probably works because at time that the project was developed, composer was on another version and when change the Major version from 1 to 2 the compatibility was broke. With this command you downgrade composer and probably going to solve this
You should try running composer update --lock that will update all packages and recreate the compose.lock file.
Either you can delete the composer.lock file and run composer install that will also recreate the .lock file.
This resolved my issue.
I had this error with Github Actions trying to deploy a Laravel app, this is probably different than the OP's case but none of the suggestions worked for me. Adding my answer here just in case there is someone else out there with a similar problem to mine.
I had to disable -q in Github Actions and see that it was complaining about extensions not being installed.
Make sure your require section of composer's php extensions matches the extensions: in your github action file for shivammathur/setup-php#v2 and it will deploy again
Recently I've just come across of this error when I tried to run my Laravel 7 project which required php v7.* with php v8. As I forgot my php version I just tried bunch of composer command, but just got error after error.
Anyway, to solve this just downgrade/upgrade php version as required. Just search how to do that in youtube.
you can see your project required php version in composer.json file (just if you wonder)
Also you can try following way (But though it didn't worked for me, seems it helped quite some people)
-- Open composer.json file and change php version to something like this: "php": "^7.3|^8.1"
-- Then run composer update
I faced this problem with my cakephp project in garuda linux (arch based)
Fix :
Install php-intl using sudo pacman -S php-intl
Enable php intl by editing php config ( in my case /etc/php/php.ini ) .
add extension=intl or uncomment the existing one
restart apache or whatever you are using
I had the same error deploying another project with composer, but the problem was a missing php extension.
I understand you solve your problem but for anyone seeing the same error message, here is a general guidance :
The error message Your lock file does not contain a compatible set of packages. Please run composer update is shown each time there is a conflict during the dependency solving step of composer install. (see the relevant part in composer source code)
It doesn't inform on the real problem though, and it could be hard to guess.
To get the exact explanation you can add --verbose option to composer install command (the option is available to any composer command (see the doc)) : composer install --verbose
It will give you the full message explaining what exactly is preventing composer install from completing (package version conflict, missing php extension, etc.), then you'll be able to fix the problem.
Hope this could help.
In my case this problem is occuring in Ubuntu 20.04 Desktop. This is due to some missing packages.
I ran the following commands to install some packages then rerun Composer install and its working properly. The commands are:
sudo apt-get install php-mbstring
sudo apt-get install php-xml
Then rerun composer install
Well, after running command composer outdated I can see there's newer version of phpdocumentor/type-resolver available. Installed version is 0.2.1 and the latest one is 0.3.0. Need to say that it was indirectly installed by component I use and not by me.
Problem is when I run composer update or composer update phpdocumentor/type-resolver it says "Nothing to install or update". Why and how to fix?
probably some dependency have fixed the package release you want to install. Try so the the output of the command to check who are using and at which version the package you listed:
composer why-not phpdocumentor/type-resolver 0.3.0
NB: in the current version of the documentation of composer the command is named prohibits, so in case this doesn't work try with:
composer prohibits phpdocumentor/type-resolver 0.3.0
Hope this help
You might have version constraints blocking the upgrade in your composer.json file. This is intended to prevent adding in breaking changes. In your example, the versions are pre-release (0.*), so versioning constraints even act on the miner version.
If you are confident there are no breaking changes or you are prepared to deal with them, edit your composer.json file. Change something like:
"phpdocumentor/type-resolver": "0.2.1",
to
"phpdocumentor/type-resolver": "^0.3",
Try composer upgrade again and test it out to make sure everything is ok.
Is it possible to set the installation order?
Currently I'm using Doctrine module that requires ext-mongo to be installed, but as I'm using the newer php version (7.0) I have mongodb installed instead. There's a alcaeus/mongo-php-adapter package that resolves installation problems. But there's one problem - Composer is trying to install Doctrine modules first, so that installation fails.
Currently I have to resolve this problem manually, but I can't do it any more as I'm going to pack my environment to a Docker image to let it be automatically deployed later.
From the docs of alcaeus/mongo-php-adapter
"
$ composer require alcaeus/mongo-php-adapter
If your project already has a dependency on ext-mongo, the command above may not work. This is due to a bug in composer, see https://github.com/composer/composer/issues/5030
To fix this, you can use the --ignore-platform-reqs switch when running the above command, or when running composer update with no composer.lock file present."