Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires workerman/coroutine ^1.0 || dev-main -> satisfiable by workerman/coroutine[dev-main, v1.0.0]. - workerman/coroutine v1.0.0 requires workerman/workerman 5.1.0 || dev-master -> satisfiable by workerman/workerman[dev-master] from composer repo (https://repo.packagist.org) but workerman/workerman dev-b42251f0ad7227f79e2fe4dbb13ef389eb157f68 is the root package and cannot be modified. See https://getcomposer.org/dep-on-root for details and assistance. - workerman/coroutine dev-main requires workerman/workerman ^5.1 || dev-master -> satisfiable by workerman/workerman[dev-master] from composer repo (https://repo.packagist.org) but workerman/workerman dev-b42251f0ad7227f79e2fe4dbb13ef389eb157f68 is the root package and cannot be modified. See https://getcomposer.org/dep-on-root for details and assistance.

Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires workerman/coroutine ^1.0 || dev-main -> satisfiable by workerman/coroutine[dev-main, v1.0.0]. - workerman/coroutine v1.0.0 requires workerman/workerman 5.1.0 || dev-master -> satisfiable by workerman/workerman[dev-master] from composer repo (https://repo.packagist.org) but workerman/workerman dev-b42251f0ad7227f79e2fe4dbb13ef389eb157f68 is the root package and cannot be modified. See https://getcomposer.org/dep-on-root for details and assistance. - workerman/coroutine dev-main requires workerman/workerman ^5.1 || dev-master -> satisfiable by workerman/workerman[dev-master] from composer repo (https://repo.packagist.org) but workerman/workerman dev-b42251f0ad7227f79e2fe4dbb13ef389eb157f68 is the root package and cannot be modified. See https://getcomposer.org/dep-on-root for details and assistance.

Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires workerman/coroutine ^1.0 || dev-main -> satisfiable by workerman/coroutine[dev-main, v1.0.0]. - workerman/coroutine v1.0.0 requires workerman/workerman 5.1.0 || dev-master -> satisfiable by workerman/workerman[dev-master] from composer repo (https://repo.packagist.org) but workerman/workerman dev-b42251f0ad7227f79e2fe4dbb13ef389eb157f68 is the root package and cannot be modified. See https://getcomposer.org/dep-on-root for details and assistance. - workerman/coroutine dev-main requires workerman/workerman ^5.1 || dev-master -> satisfiable by workerman/workerman[dev-master] from composer repo (https://repo.packagist.org) but workerman/workerman dev-b42251f0ad7227f79e2fe4dbb13ef389eb157f68 is the root package and cannot be modified. See https://getcomposer.org/dep-on-root for details and assistance.

Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires workerman/coroutine ^1.0 || dev-main -> satisfiable by workerman/coroutine[dev-main, v1.0.0]. - workerman/coroutine v1.0.0 requires workerman/workerman 5.1.0 || dev-master -> satisfiable by workerman/workerman[dev-master] from composer repo (https://repo.packagist.org) but workerman/workerman dev-b42251f0ad7227f79e2fe4dbb13ef389eb157f68 is the root package and cannot be modified. See https://getcomposer.org/dep-on-root for details and assistance. - workerman/coroutine dev-main requires workerman/workerman ^5.1 || dev-master -> satisfiable by workerman/workerman[dev-master] from composer repo (https://repo.packagist.org) but workerman/workerman dev-b42251f0ad7227f79e2fe4dbb13ef389eb157f68 is the root package and cannot be modified. See https://getcomposer.org/dep-on-root for details and assistance.

Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires workerman/coroutine ^1.0 || dev-main -> satisfiable by workerman/coroutine[dev-main, v1.0.0]. - workerman/coroutine v1.0.0 requires workerman/workerman 5.1.0 || dev-master -> satisfiable by workerman/workerman[dev-master] from composer repo (https://repo.packagist.org) but workerman/workerman dev-b42251f0ad7227f79e2fe4dbb13ef389eb157f68 is the root package and cannot be modified. See https://getcomposer.org/dep-on-root for details and assistance. - workerman/coroutine dev-main requires workerman/workerman ^5.1 || dev-master -> satisfiable by workerman/workerman[dev-master] from composer repo (https://repo.packagist.org) but workerman/workerman dev-b42251f0ad7227f79e2fe4dbb13ef389eb157f68 is the root package and cannot be modified. See https://getcomposer.org/dep-on-root for details and assistance.

Final attempt failed. Child_process exited with error code 2

Attempt 1 failed. Reason: Child_process exited with error code 2

Attempt 2 failed. Reason: Child_process exited with error code 2

Attempt 3 failed. Reason: Child_process exited with error code 2