composer error - Githubissues

Q	A
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hi @cocolabssas ,

I can no longer install cocorico with composer.

Error: php composer.phar install

Installing dependencies from lock file (including require-dev) Verifying lock file contents can be installed on current platform. Your lock file does not contain a compatible set of packages. Please run composer update.

Problem 1

ocramius/package-versions is locked to version 1.2.0 and an update of this package was not requested.
ocramius/package-versions 1.2.0 requires composer-plugin-api ^1.0 -> found composer-plugin-api[2.0.0] but it does not match the constraint. Problem 2
robloach/component-installer is locked to version 0.2.3 and an update of this package was not requested.
robloach/component-installer 0.2.3 requires composer-plugin-api ^1.0 -> found composer-plugin-api[2.0.0] but it does not match the constraint. Problem 3
wikimedia/composer-merge-plugin is locked to version v1.4.1 and an update of this package was not requested.
wikimedia/composer-merge-plugin v1.4.1 requires composer-plugin-api ^1.0 -> found composer-plugin-api[2.0.0] but it does not match the constraint. Problem 4
robloach/component-installer 0.2.3 requires composer-plugin-api ^1.0 -> found composer-plugin-api[2.0.0] but it does not match the constraint.
helios-ag/fm-elfinder-bundle 6.2.1 requires robloach/component-installer ~0.2 -> satisfiable by robloach/component-installer[0.2.3].
helios-ag/fm-elfinder-bundle is locked to version 6.2.1 and an update of this package was not requested.

ocramius/package-versions only provides support for Composer 2 in 1.8+, which requires PHP 7.4. If you can not upgrade PHP you can require composer/package-versions-deprecated to resolve this with PHP 7.0+.

You are using Composer 2, which some of your plugins seem to be incompatible with. Make sure you update your plugins or report a plugin-issue to ask them to support Composer 2.

OS: debian 10 Php: 7.3

Cocolabs-SAS / cocorico

composer error #524