guzzlehttp/psr7 依赖问题

[guanguans]

guzzlehttp/psr7 依赖有问题(guzzlehttp/psr7: "2.1.1")

./composer.json has been updated
Running composer update aoxiang/province-city-area
Loading composer repositories with package information
Updating dependencies
Your requirements could not be resolved to an installable set of packages.

  Problem 1
    - Root composer.json requires aoxiang/province-city-area dev-master -> satisfiable by aoxiang/province-city-area[dev-master].
    - aoxiang/province-city-area dev-master requires guzzlehttp/psr7 2.1.1 -> found guzzlehttp/psr7[dev-master, 1.0.0, ..., 1.x-dev, 2.0.0-beta1, ..., 2.2.x-dev (alias of dev-master)] but it does not match the constraint.

Use the option --with-all-dependencies (-W) to allow upgrades, downgrades and removals for packages currently locked to specific versions.

Installation failed, reverting ./composer.json and ./composer.lock to their original content.

[aoxiang594]

好了