Your lock file does not contain a compatible set of packages. Please run composer update. Problem 1 - rudra/docs is locked to version dev-master and an update of this package was not requested. - rudra/docs dev-master requires rudra/container dev-master -> found rudra/container[1.0.0+no-version-set] but it does not match the constraint. See https://getcomposer.org/dep-on-root for details and assistance. Problem 2 - rudra/docs dev-master requires rudra/container dev-master -> found rudra/container[1.0.0+no-version-set] but it does not match the constraint. See https://getcomposer.org/dep-on-root for details and assistance. - rudra/docs is locked to version dev-master and an update of this package was not requested.