I built a Drupal 8.9 site with Composer on a DEV server and copied the files (& db) over to the LIVE server. The LIVE server did not have Composer installed previously so I installed it, locally. The new website has its `composer.json` file from when I created the site and added modules. I tried `composer update` to verify that composer will work when the time comes. It fails and I don't know if I need to rip out the website and re-create it again (then copy select files back over). --- --- When I run it I get the following output: > Loading composer repositories with package information Updating dependencies Your requirements could not be resolved to an installable set of packages. > > Problem 1 > > - Conclusion: don't install drupal/core-recommended 8.9.x-dev (conflict analysis result) > - Conclusion: don't install drupal/core-recommended 8.8.7 (conflict analysis result) > - Conclusion: don't install drupal/core-recommended 8.8.8 (conflict analysis result) > - Conclusion: don't install drupal/core-recommended 8.8.9 (conflict analysis result) > - Conclusion: don't install drupal/core-recommended 8.8.10 (conflict analysis result) > - Conclusion: don't install drupal/core-recommended 8.8.11 (conflict analysis result) > - Conclusion: don't install drupal/core-recommended 8.8.12 (conflict analysis result) > - Conclusion: don't install drupal/core-recommended 8.9.0 (conflict analysis result) > - Conclusion: don't install drupal/core-recommended 8.9.1 (conflict analysis result) > - Conclusion: don't install drupal/core-recommended 8.9.2 (conflict analysis result) > - Conclusion: don't install drupal/core-recommended 8.9.3 (conflict analysis result) > - Conclusion: don't install drupal/core-recommended 8.9.4 (conflict analysis result) > - Conclusion: don't install drupal/core-recommended 8.9.5 (conflict analysis result) > - Conclusion: don't install drupal/core-recommended 8.9.6 (conflict analysis result) > - Conclusion: don't install drupal/core-recommended 8.9.7 (conflict analysis result) > - Conclusion: don't install drupal/core-recommended 8.9.8 (conflict analysis result) > - Conclusion: don't install drupal/core-recommended 8.9.9 (conflict analysis result) > - Conclusion: don't install drupal/core-recommended 8.9.10 (conflict analysis result) > - Conclusion: don't install drupal/core-recommended 8.9.11 (conflict analysis result) > - Conclusion: don't install drupal/core-recommended 8.9.12 (conflict analysis result) > - Conclusion: don't install drupal/core-recommended 8.9.13 (conflict analysis result) > - Conclusion: don't install drupal/core-recommended 8.9.14 (conflict analysis result) > - Conclusion: don't install drupal/core-recommended 8.9.15 (conflict analysis result) > - Conclusion: don't install drupal/core-recommended 8.9.16 (conflict analysis result) > - Conclusion: don't install drupal/core-recommended 8.9.17 (conflict analysis result) > - Conclusion: don't install drupal/core-recommended 8.9.18 (conflict analysis result) > - Conclusion: don't install drupal/core-recommended 8.9.19 (conflict analysis result) > - Conclusion: don't install drupal/core-recommended 8.9.20 (conflict analysis result) > - drupal/core-recommended[8.8.0-beta1, ..., 8.9.0-rc1] require composer/installers v1.7.0 -> satisfiable by -> composer/installers[v1.7.0]. > - composer/installers v1.7.0 requires composer-plugin-api ^1.0 -> found composer-plugin-api[2.1.0] but it does not match the constraint. > - symfony/polyfill-mbstring 1.23.x-dev is an alias of symfony/polyfill-mbstring dev-main and thus requires it to be installed too. > - easyrdf/easyrdf 0.9.1 requires ext-mbstring * -> satisfiable by symfony/polyfill-mbstring[dev-main, 1.23.x-dev (alias of dev-main)]. > - You can only install one version of a package, so only one of these can be installed: symfony/polyfill-mbstring[dev-main, v1.0.0, ..., v1.23.1]. > - drupal/core-recommended 8.8.x-dev requires easyrdf/easyrdf 0.9.1 -> satisfiable by easyrdf/easyrdf[0.9.1]. > - drupal/core-recommended 8.8.x-dev requires symfony/polyfill-mbstring v1.12.0 -> satisfiable by symfony/polyfill-mbstring[v1.12.0]. > - Root composer.json requires drupal/core-recommended ^8.8 -> satisfiable by drupal/core-recommended[8.8.0-beta1, ..., 8.9.x-dev]. > > To enable extensions, verify that they are enabled in your .ini files: > > - /etc/php.ini > - /etc/php.ini > - /etc/php.d/20-bz2.ini > - /etc/php.d/20-calendar.ini > - /etc/php.d/20-ctype.ini > - /etc/php.d/20-curl.ini > - /etc/php.d/20-dom.ini > - /etc/php.d/20-exif.ini > - /etc/php.d/20-fileinfo.ini > - /etc/php.d/20-ftp.ini > - /etc/php.d/20-gd.ini > - /etc/php.d/20-gettext.ini > - /etc/php.d/20-iconv.ini > - /etc/php.d/20-json.ini > - /etc/php.d/20-mysqlnd.ini > - /etc/php.d/20-pdo.ini > - /etc/php.d/20-phar.ini > - /etc/php.d/20-simplexml.ini > - /etc/php.d/20-sockets.ini > - /etc/php.d/20-sqlite3.ini > - /etc/php.d/20-tokenizer.ini > - /etc/php.d/20-xml.ini > - /etc/php.d/20-xmlwriter.ini > - /etc/php.d/20-xsl.ini > - /etc/php.d/30-mcrypt.ini > - /etc/php.d/30-mysqli.ini > - /etc/php.d/30-pdo_mysql.ini > - /etc/php.d/30-pdo_sqlite.ini > - /etc/php.d/30-wddx.ini > - /etc/php.d/30-xmlreader.ini > - /etc/php.d/40-zip.ini > > You can also run `php --ini` inside terminal to see which files are used by PHP in CLI mode. --- Running `php --ini` comes up with a matching list --- Contents of my `composer.json` file: > $ clear && cat composer.json > > { > > "name": "drupal/recommended-project", > > "description": "Project template for Drupal 8 projects with a relocated document root", > > "type": "project", > > "license": "GPL-2.0-or-later", > > "homepage": "https://www.drupal.org/project/drupal", > > "support": { > > "docs": "https://www.drupal.org/docs/user_guide/en/index.html", > > "chat": "https://www.drupal.org/node/314178" > > }, > > "repositories": [ > > { > > "type": "composer", > > "url": "https://packages.drupal.org/8" > > } > > ], > > "require": { > > "composer/installers": "^1.2", > > "drupal/block_class": "^1.3", > > "drupal/bootstrap": "^3.23", > > "drupal/captcha": "^1.2", > > "drupal/core-composer-scaffold": "^8.8", > > "drupal/core-project-message": "^8.8", > > "drupal/core-recommended": "^8.8", > > "drupal/mask": "^2.0@alpha", > > "drupal/recaptcha": "^3.0", > > "drupal/webform": "^6.1" > > }, > > "conflict": { > > "drupal/drupal": "*" > > }, > > "minimum-stability": "dev", > > "prefer-stable": true, > > "config": { > > "sort-packages": true > > }, > > "extra": { > > "drupal-scaffold": { > > "locations": { > > "web-root": "web/" > > } > > }, > > "installer-paths": { > > "web/core": [ > > "type:drupal-core" > > ], > > "web/libraries/{$name}": [ > > "type:drupal-library" > > ], > > "web/modules/contrib/{$name}": [ > > "type:drupal-module" > > ], > > "web/profiles/contrib/{$name}": [ > > "type:drupal-profile" > > ], > > "web/themes/contrib/{$name}": [ > > "type:drupal-theme" > > ], > > "drush/Commands/contrib/{$name}": [ > > "type:drupal-drush" > > ], > > "web/modules/custom/{$name}": [ > > "type:drupal-custom-module" > > ], > > "web/themes/custom/{$name}": [ > > "type:drupal-custom-theme" > > ] > > }, > > "drupal-core-project-message": { > > "include-keys": [ > > "homepage", > > "support" > > ], > > "post-create-project-cmd-message": [ > > "<bg=blue;fg=white> </>", > > "<bg=blue;fg=white> Congratulations, you’ve installed the Drupal codebase </>", > > "<bg=blue;fg=white> from the drupal/recommended-project template! </>", > > "<bg=blue;fg=white> </>", > > "", > > "<bg=yellow;fg=black>Next steps</>:", > > " * Install the site: https://www.drupal.org/docs/8/install", > > " * Read the user guide: https://www.drupal.org/docs/user_guide/en/index.html", > > " * Get support: https://www.drupal.org/support", > > " * Get involved with the Drupal community:", > > " https://www.drupal.org/getting-involved", > > " * Remove the plugin that prints this message:", > > " composer remove drupal/core-project-message" > > ] > > } > > } > >} > >