ps / image-optimizer使用laravel 5.7显示psr / log安装错误

Question

我试图在laravel 5.7中安装ps / image-optimizer，但显示psr / log错误，并且不支持最新的psr / log软件包。

Your requirements could not be resolved to an installable set of packages.

  Problem 1
    - Installation request for ps/image-optimizer ^1.2 -> satisfiable by ps/imag   e-optimizer[1.2.0].
    - Conclusion: remove psr/log 1.1.0
    - Conclusion: don't install psr/log 1.1.0
    - ps/image-optimizer 1.2.0 requires psr/log 1.0.* -> satisfiable by psr/log[1.0.0, 1.0.1, 1.0.2].
    - Can only install one of: psr/log[1.0.0, 1.1.0].
    - Can only install one of: psr/log[1.0.1, 1.1.0].
    - Can only install one of: psr/log[1.0.2, 1.1.0].
    - Installation request for psr/log (locked at 1.1.0) -> satisfiable by psr/log[1.1.0].


Installation failed, reverting ./composer.json to its original content.

ps/image-optimizer