\[InvalidArgumentException\] Could not find package vlucas/phpdotenv. Couldn't download package - php

Question

I'm having a problem with vlucas/phpdotenv installation
 ~/ nslookup repo.packagist.org
Server: 8.8.8.8
Address: 8.8.8.8#53
Non-authoritative answer:
Name: repo.packagist.org
Address: 54.37.2.184
My composer.json:
{
"name": "developer/mvc",
"authors": [
{
"name": "Abubakr Abduvakhidov",
"email": "abubakr#edu.thedevs.co"
}
],
"autoload": {
"psr-4": {
"app\\": "."
}
},
"require": {}
}
Output of composer diagnose:
Checking platform settings: OK
Checking git settings: OK
Checking http connectivity to packagist: OK
Checking https connectivity to packagist: OK
Checking github.com rate limit: OK
Checking disk free space: OK
Checking pubkeys:
Tags Public Key Fingerprint: 57815BA2 7E54DC31 7ECC7CC5 573090D0 87719BA6 8F3BB723 4E5D42D0 84A14642
Dev Public Key Fingerprint: 4AC45767 E5EC2265 2F0C1167 CBBB8A2B 0C708369 153E328C AD90147D AFE50952
OK
Checking composer version: OK
Composer version: 2.0.8
PHP version: 7.4.12
PHP binary path: /usr/local/Cellar/php/7.4.12/bin/php
OpenSSL version: OpenSSL 1.1.1h 22 Sep 2020
cURL version: 7.73.0 libz 1.2.11 ssl OpenSSL/1.1.1h
zip: extension present, unzip present
When I run this command:
composer require vlucas/phpdotenv -vvv
I get the following output:
Loading config file /Users/abubakr/.composer/config.json
Loading config file /Users/abubakr/.composer/auth.json
Failed to initialize global composer: Composer could not find the config file: /Users/abubakr/.composer/composer.json
To initialize a project, please create a composer.json file as described in the https://getcomposer.org/ "Getting Started" section
Running 2.0.8 (2020-12-03 17:20:38) with PHP 7.4.12 on Darwin / 20.1.0
Loading config file /Users/abubakr/.composer/config.json
Loading config file /Users/abubakr/.composer/auth.json
Failed to initialize global composer: Composer could not find the config file: /Users/abubakr/.composer/composer.json
To initialize a project, please create a composer.json file as described in the https://getcomposer.org/ "Getting Started" section
Reading ./composer.json
Loading config file /Users/abubakr/.composer/config.json
Loading config file /Users/abubakr/.composer/auth.json
Loading config file ./composer.json
Checked CA file /usr/local/etc/openssl#1.1/cert.pem: valid
Executing command (/Users/abubakr): git branch -a --no-color --no-abbrev -v
Executing command (/Users/abubakr): git describe --exact-match --tags
Executing command (CWD): git --version
Executing command (/Users/abubakr): git log --pretty="%H" -n1 HEAD --no-show-signature
Executing command (/Users/abubakr): hg branch
Executing command (/Users/abubakr): fossil branch list
Executing command (/Users/abubakr): fossil tag list
Executing command (/Users/abubakr): svn info --xml
Failed to initialize global composer: Composer could not find the config file: /Users/abubakr/.composer/composer.json
To initialize a project, please create a composer.json file as described in the https://getcomposer.org/ "Getting Started" section
Downloading https://packagist.phpcomposer.com/packages.json
[200] https://packagist.phpcomposer.com/packages.json
Writing /Users/abubakr/.composer/cache/repo/https---packagist.phpcomposer.com/packages.json into cache
Downloading https://packagist.phpcomposer.com/p2/vlucas/phpdotenv.json
[404] https://packagist.phpcomposer.com/p2/vlucas/phpdotenv.json
Downloading https://packagist.phpcomposer.com/p2/vlucas/phpdotenv~dev.json
[404] https://packagist.phpcomposer.com/p2/vlucas/phpdotenv~dev.json
Downloading https://packagist.org/search.json?q=vlucas/phpdotenv&type=
[200] https://packagist.org/search.json?q=vlucas/phpdotenv&type=
[RuntimeException]
No composer.json present in the current directory, this may be the cause of
the following exception.
Exception trace:
() at phar:///usr/local/Cellar/composer/2.0.6/bin/composer/src/Composer/Command/RequireCommand.php:193
Composer\Command\RequireCommand->execute() at phar:///usr/local/Cellar/composer/2.0.6/bin/composer/vendor/symfony/console/Command/Command.php:245
Symfony\Component\Console\Command\Command->run() at phar:///usr/local/Cellar/composer/2.0.6/bin/composer/vendor/symfony/console/Application.php:835
Symfony\Component\Console\Application->doRunCommand() at phar:///usr/local/Cellar/composer/2.0.6/bin/composer/vendor/symfony/console/Application.php:185
Symfony\Component\Console\Application->doRun() at phar:///usr/local/Cellar/composer/2.0.6/bin/composer/src/Composer/Console/Application.php:310
Composer\Console\Application->doRun() at phar:///usr/local/Cellar/composer/2.0.6/bin/composer/vendor/symfony/console/Application.php:117
Symfony\Component\Console\Application->run() at phar:///usr/local/Cellar/composer/2.0.6/bin/composer/src/Composer/Console/Application.php:122
Composer\Console\Application->run() at phar:///usr/local/Cellar/composer/2.0.6/bin/composer/bin/composer:63
require() at /usr/local/Cellar/composer/2.0.6/bin/composer:24
[InvalidArgumentException]
Could not find package vlucas/phpdotenv.
Did you mean one of these?
vlucas/phpdotenv
sobyte/dotenv-php
calgamo/module-php-dotenv
abacaphiliac/zend-phpdotenv
davek1312/config
Exception trace:
() at phar:///usr/local/Cellar/composer/2.0.6/bin/composer/src/Composer/Command/InitCommand.php:796
Composer\Command\InitCommand->findBestVersionAndNameForPackage() at phar:///usr/local/Cellar/composer/2.0.6/bin/composer/src/Composer/Command/InitCommand.php:430
Composer\Command\InitCommand->determineRequirements() at phar:///usr/local/Cellar/composer/2.0.6/bin/composer/src/Composer/Command/RequireCommand.php:189
Composer\Command\RequireCommand->execute() at phar:///usr/local/Cellar/composer/2.0.6/bin/composer/vendor/symfony/console/Command/Command.php:245
Symfony\Component\Console\Command\Command->run() at phar:///usr/local/Cellar/composer/2.0.6/bin/composer/vendor/symfony/console/Application.php:835
Symfony\Component\Console\Application->doRunCommand() at phar:///usr/local/Cellar/composer/2.0.6/bin/composer/vendor/symfony/console/Application.php:185
Symfony\Component\Console\Application->doRun() at phar:///usr/local/Cellar/composer/2.0.6/bin/composer/src/Composer/Console/Application.php:310
Composer\Console\Application->doRun() at phar:///usr/local/Cellar/composer/2.0.6/bin/composer/vendor/symfony/console/Application.php:117
Symfony\Component\Console\Application->run() at phar:///usr/local/Cellar/composer/2.0.6/bin/composer/src/Composer/Console/Application.php:122
Composer\Console\Application->run() at phar:///usr/local/Cellar/composer/2.0.6/bin/composer/bin/composer:63
require() at /usr/local/Cellar/composer/2.0.6/bin/composer:24
require [--dev] [--dry-run] [--prefer-source] [--prefer-dist] [--fixed] [--no-suggest] [--no-progress] [--no-update] [--no-install] [--no-scripts] [--update-no-dev] [-w|--update-with-dependencies] [-W|--update-with-all-dependencies] [--with-dependencies] [--with-all-dependencies] [--ignore-platform-req IGNORE-PLATFORM-REQ] [--ignore-platform-reqs] [--prefer-stable] [--prefer-lowest] [--sort-packages] [-o|--optimize-autoloader] [-a|--classmap-authoritative] [--apcu-autoloader] [--apcu-autoloader-prefix APCU-AUTOLOADER-PREFIX] [--] [<packages>]...
And I expected this to happen:
package to be installed
Additional:
 /Applications/XAMPP/xamppfiles/htdocs/php/mvc/ [master+*] which composer
/usr/local/bin/composer
 /Applications/XAMPP/xamppfiles/htdocs/php/mvc/ [master+*] alias | grep composer
 /Applications/XAMPP/xamppfiles/htdocs/php/mvc/ [master+*] ls
composer.json core models vendor
composer.lock migrations public views
controllers migrations.php runtime

Answer 1

Actually, it was because of loading metadata from https://packagist.phpcomposer.com/packages.json, which is not the official Packagist, but an official mirror (and a broken one according to the list in https://github.com/Webysther/packagist-mirror#-packagist-public-metadata-mirrors-observatory-around-the-world)
That's probably the reason for the issue: the package is not found in the metadata in this repository, but the repository still exposes the official search endpoint instead of a mirrored one, which is used by composer when looking for alternative names.
After running the command in the bottom it started downloading
composer config -g repo.packagist composer https://packagist.org