composer选择php版本无效

composer选择php版本无效，点了执行都是显示自动选择，不能自足选择php版本

Dependency resolution completed in 0.000 seconds
Your lock file does not contain a compatible set of packages. Please run composer update.

  Problem 1
    - intervention/image is locked to version 2.7.0 and an update of this package was not requested.
    - intervention/image 2.7.0 requires ext-fileinfo * -> it is missing from your system. Install or enable PHP's fileinfo extension.
  Problem 2
    - league/flysystem is locked to version 1.1.3 and an update of this package was not requested.
    - league/flysystem 1.1.3 requires ext-fileinfo * -> it is missing from your system. Install or enable PHP's fileinfo extension.
  Problem 3
    - league/mime-type-detection is locked to version 1.7.0 and an update of this package was not requested.
    - league/mime-type-detection 1.7.0 requires ext-fileinfo * -> it is missing from your system. Install or enable PHP's fileinfo extension.
  Problem 4
    - phpoffice/phpspreadsheet is locked to version 1.16.0 and an update of this package was not requested.
    - phpoffice/phpspreadsheet 1.16.0 requires ext-fileinfo * -> it is missing from your system. Install or enable PHP's fileinfo extension.
  Problem 5
    - league/flysystem 1.1.3 requires ext-fileinfo * -> it is missing from your system. Install or enable PHP's fileinfo extension.
    - laravel/framework v7.30.4 requires league/flysystem ^1.1 -> satisfiable by league/flysystem[1.1.3].
    - laravel/framework is locked to version v7.30.4 and an update of this package was not requested.